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【单选题】
One of the features of REM sleep is that______.
A.
there are large slow waves, though rapid for the first few minutes
B.
you have the deepest sleep
C.
there are no brain waves
D.
the brain waves are a little last and the brain becomes a little active
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【单选题】下列关于舌损伤处理原则中错误的是
A.
舌组织有缺损时缝合创口要尽量保持舌的长度，将创口前后纵行方向进行缝合
B.
如缺损较大，必要时可将舌尖向后折转缝合
C.
舌侧面及邻近牙龈和口底黏膜均有创口而又不能同时关闭时，应先缝合舌的创口
D.
应用粗针粗线缝合
E.
进针处应距创缘较远，缝合要深一点
【单选题】たまには旅行でもしたいと思うのですが、忙しくて休みなんか（ ）。
A.
とてもとれそうにありません
B.
必ずとらなければなりません
C.
いつかとれるでしょう
D.
ぜひとりたいです
【单选题】商社に勤める友人は、５年にわたる海外生活を終えて先月帰国した。彼（ ）子供たちのこれからの 教育をどうするかが、大きな悩みになっている。
A.
に対して
B.
によって
C.
について
D.
にとって
【单选题】Passage FiveLaser-doppler radar （） A．measures the movements of a spaceship by means of light beam B．makes use of microwaves C．makes use of sound waves D．Both A and B
A.
Passage Five
B.
A new kind of radar has been developed for spaceship travelers. A working laboratory model of a new system of radar that makes use of a beam of light is said to be ten thousand times more accurate than the best comparable system of radar that used microwaves.
C.
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops--speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship’s skin, or a nudge could knock the station out of its orbit.
D.
The light-beam radar, which operates at a frequency of trillions (百万兆) of cycles per second, could easily detect and measure the movement of a vehicle edging up to a satellite space station. A control system using so precise a signal as this would allow a huge vehicle to dock at a space station as lightly as a feather.
相关题目：
【单选题】下列关于舌损伤处理原则中错误的是
A.
舌组织有缺损时缝合创口要尽量保持舌的长度，将创口前后纵行方向进行缝合
B.
如缺损较大，必要时可将舌尖向后折转缝合
C.
舌侧面及邻近牙龈和口底黏膜均有创口而又不能同时关闭时，应先缝合舌的创口
D.
应用粗针粗线缝合
E.
进针处应距创缘较远，缝合要深一点
【单选题】たまには旅行でもしたいと思うのですが、忙しくて休みなんか（ ）。
A.
とてもとれそうにありません
B.
必ずとらなければなりません
C.
いつかとれるでしょう
D.
ぜひとりたいです
【单选题】商社に勤める友人は、５年にわたる海外生活を終えて先月帰国した。彼（ ）子供たちのこれからの 教育をどうするかが、大きな悩みになっている。
A.
に対して
B.
によって
C.
について
D.
にとって
【单选题】Passage FiveLaser-doppler radar （） A．measures the movements of a spaceship by means of light beam B．makes use of microwaves C．makes use of sound waves D．Both A and B
A.
Passage Five
B.
A new kind of radar has been developed for spaceship travelers. A working laboratory model of a new system of radar that makes use of a beam of light is said to be ten thousand times more accurate than the best comparable system of radar that used microwaves.
C.
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops--speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship’s skin, or a nudge could knock the station out of its orbit.
D.
The light-beam radar, which operates at a frequency of trillions (百万兆) of cycles per second, could easily detect and measure the movement of a vehicle edging up to a satellite space station. A control system using so precise a signal as this would allow a huge vehicle to dock at a space station as lightly as a feather.
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