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【单选题】

More than () years ago, there was a war between the two countries.

A.
three thousand
B.
three thousands
C.
three thousand of
D.
three thousands of
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参考答案:
举一反三

【单选题】The passage is mainly about () A.the features of volcanic activities B.the importance of the theory about drifting plates C.the significance of hot spots in geophysical studies D.the process of the fo...

A.
Text 4
B.
Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world’ s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth’ s suce; on the contrary, many of them lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The hot spots and their volcanic trails are milestones that mark the passage of the plates.
C.
That the plates are moving is not beyond dispute. Africa and South America, for example, are moving away from earth other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth’ s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots, anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an ysis of the hot spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.
D.
The significance of hot spots is not confined to their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes that propel the plates across the globe. When a continental plate comes to rest over a hot spot, the material rising from deeper layer creates a broad dome. As the dome grows, it develops seed fissures(cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability(inconstancy).

【单选题】肺炎球菌肺炎风热犯肺卫证的治法是

A.
疏风清热,宣肺止咳
B.
清熟化痰,宽胸止咳
C.
清热解毒,化痰开窍
D.
益气养阴,回阳固脱
E.
益气养阴,润肺化痰

【单选题】报表的数据源可以是( )。

A.
表、查询或视图
B.
自由表或其他报表
C.
数据库表、 自由表或查询
D.
数据库表、自由表、视图或临时表

【单选题】西周时期婚姻缔结的原则不包括:( )

A.
一夫一妻
B.
同姓不婚
C.
父母之命
D.
六礼必备

【单选题】急性胰腺炎时升高最早是

A.
血清淀粉酶
B.
尿淀粉酶
C.
血清脂肪酶
D.
转肽酶
E.
CA19-9
相关题目:
【单选题】The passage is mainly about () A.the features of volcanic activities B.the importance of the theory about drifting plates C.the significance of hot spots in geophysical studies D.the process of the fo...
A.
Text 4
B.
Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world’ s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth’ s suce; on the contrary, many of them lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The hot spots and their volcanic trails are milestones that mark the passage of the plates.
C.
That the plates are moving is not beyond dispute. Africa and South America, for example, are moving away from earth other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth’ s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots, anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an ysis of the hot spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.
D.
The significance of hot spots is not confined to their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes that propel the plates across the globe. When a continental plate comes to rest over a hot spot, the material rising from deeper layer creates a broad dome. As the dome grows, it develops seed fissures(cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability(inconstancy).
【单选题】肺炎球菌肺炎风热犯肺卫证的治法是
A.
疏风清热,宣肺止咳
B.
清熟化痰,宽胸止咳
C.
清热解毒,化痰开窍
D.
益气养阴,回阳固脱
E.
益气养阴,润肺化痰
【单选题】报表的数据源可以是( )。
A.
表、查询或视图
B.
自由表或其他报表
C.
数据库表、 自由表或查询
D.
数据库表、自由表、视图或临时表
【单选题】西周时期婚姻缔结的原则不包括:( )
A.
一夫一妻
B.
同姓不婚
C.
父母之命
D.
六礼必备
【单选题】急性胰腺炎时升高最早是
A.
血清淀粉酶
B.
尿淀粉酶
C.
血清脂肪酶
D.
转肽酶
E.
CA19-9
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