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【单选题】
白蚁的蚁巢在（）坝多，砂性土质坝少。
A.
粘性土质
B.
壤土质
C.
粉砂
D.
砂卵石
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【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man’s life. For years sc...
A.
It is the production by termites that is now of greater concern.
B.
What scientists worry more about is the output from burning fuels.
C.
The output from burning fuels is now rising steadily.
D.
The burning of fuels generates much less carbon dioxide than termites do.
【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man's life. For years sc...
A.
low temperatures are created by using a house
B.
the house is made green in order to keep heat
C.
heat is pred from escaping outside
D.
everything is kept green in a house
【单选题】关于隧道施工过程中喷射混凝土质量问题的预防措施，下列说法错误的是（）。
A.
喷射混凝土作业前应对上喷面用高压风或水彻底清除干净，对松动石块、危石或遮挡物用人工彻底清除
B.
喷射混凝土所用的各种材料必须合格，宜采用普通硅酸盐早强水泥，等级不低于32.5级
C.
混凝土终凝2h后应喷水养生，经常保持其表面湿润，养生不得少于14d
D.
严格控制开挖爆破距喷射混凝土作业完成时间间隔，对于受喷面高低起伏过大的应事先对低洼处用喷射混凝土作找平处理，个别突出的地方应予凿除
相关题目：
【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man’s life. For years sc...
A.
It is the production by termites that is now of greater concern.
B.
What scientists worry more about is the output from burning fuels.
C.
The output from burning fuels is now rising steadily.
D.
The burning of fuels generates much less carbon dioxide than termites do.
【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man's life. For years sc...
A.
low temperatures are created by using a house
B.
the house is made green in order to keep heat
C.
heat is pred from escaping outside
D.
everything is kept green in a house
【单选题】关于隧道施工过程中喷射混凝土质量问题的预防措施，下列说法错误的是（）。
A.
喷射混凝土作业前应对上喷面用高压风或水彻底清除干净，对松动石块、危石或遮挡物用人工彻底清除
B.
喷射混凝土所用的各种材料必须合格，宜采用普通硅酸盐早强水泥，等级不低于32.5级
C.
混凝土终凝2h后应喷水养生，经常保持其表面湿润，养生不得少于14d
D.
严格控制开挖爆破距喷射混凝土作业完成时间间隔，对于受喷面高低起伏过大的应事先对低洼处用喷射混凝土作找平处理，个别突出的地方应予凿除
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