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【简答题】
Although developing hi-tech computerized toys is really a job, the market always responds well to these products.
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举一反三
【单选题】When do we use the present simple?
A.
to describe the present truth
B.
repeated actions and habits
C.
something that is always true
D.
a fixed future event
E.
all of the above
【单选题】混凝土保护层厚度是一个重要参数，一般要求设计使用年限为50年的钢筋混凝土及预应力混凝土结构，其纵向受力钢筋的混凝土保护层厚度为( )。
A.
0～15mm
B.
15～40mm
C.
0～15m
D.
15～40m
【多选题】when we report results in a research paper, what tenses shall we usually use
A.
Simple present
B.
Present perfect
C.
Simple past
D.
Simple future
【单选题】Why does Professor Greely say that when we can clone a human is not a simple question?
A.
Because the technology is evil.
B.
Because the technology is fictional.
C.
Because it is still too early to use the technology.
D.
Because many scientists have failed in using the technology.
【判断题】土地资源学研究的内容有：土地资源学的基础理论研究、土地类型和土地资源类型、土地资源调查与评价、土地生产潜力与土地人口承载力、区域土地资源的开发利用研究、土地资源的保护与管理。
A.
正确
B.
错误
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