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【单选题】
According to the passage, the purpose of being weightless was to______.A.
see what conditions are like in space
B.
prepare the young scientists for future work in space
C.
show the judges of the competition what they could do
D.
make the teams try out their ideas
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举一反三
【单选题】He would never have got the job, _____ for the fact that his father had great influence over the company．
A.
had it not been
B.
it had not been
C.
it were no
D.
were it not
【判断题】随着经济全球化趋势的加剧，竞争的范围和压力也越来越大，无论是国家与国家的竞争，还是企业与企业的竞争，科技技术成了竞争的核心要素，而科技创新需要有强大的学习能力作支撑。
A.
正确
B.
错误
【单选题】It is an abundance of cheap goods and quick delivery service ______ account for the fact that the number of Internet shopping on this website is four times ______ it was last year.
A.
that; that
B.
which; what
C.
what; that
D.
that; what