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【单选题】
外业观测记录是测量的原始数据,读错或记错的数据( )A.
应立刻涂改
B.
用橡皮将错误数据擦干净，写上正确数据
C.
用笔划去，将正确数据写在上方
D.
为保证记录簿整洁，重新记录
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皮皮学刷刷变学霸
举一反三
【单选题】We have seen how the mixture of air and fuel is delivered by the fuel system to the engine cylinder, _________ it is compressed, ignited, and burned.
A.
when
B.
where
C.
that
D.
which
【多选题】以下有关会计凭证的表述正确的有( )。
A.
记账凭证是会计人员根据审核无误的原始凭证,按照经济业务的内容加以归类,并据以确定会计分录后所填制的书面证明
B.
记账凭证是将原始凭证中的一般数据转化为会计语言
C.
会计凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
D.
记账凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
【单选题】The selection of an oil depends （） on the operating conditions, the design of the engine and the type of fuel to be burned.
A.
to a great extent
B.
on a great extent
C.
on mainly
D.
on only
【单选题】听力原文：W: Let's look at the survey on drug use and health we conducted yesterday.How reliable are these figures? M: They have a 3% margin of error. Q: What are the speakers talking about? (14)
A.
Newly-launched products.
B.
Drug users.
C.
Survey results.
D.
Public figures.
【单选题】The piston then travels up through the cylinder and ( ) the burned fuel charge.
A.
opens
B.
closes
C.
exhausts
D.
none of above
【单选题】What is Caplan' s opinion in the last paragraph?
A.
Registry of drug trials is of no use.
B.
We should make demands on new drugs besides registering drug trials.
C.
To put requirements on new drugs is much more effective than registering drug trials.
D.
A new drug must be safe and better than any other drugs already on the market.
【单选题】Because fuel is burned inside the engine cylinder, the engine is called an ____.
A.
engine
B.
internal combustion engine
C.
gasoline engine
D.
diesel engine
【简答题】As fuel is burned in the engine, about one-third of the heat energy in the fuel is converted into power.
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