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问题
单项选择题
精馏塔进料量增大时,采出量应()。
A.减少
B.增大
C.不变
D.随意
答案
参考答案:B
填空题
SC的车站视图界面中的SC()窗口可以发送命令到该车站的所有AFC设备。
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选择题
I shall never forget the years _____ I spent in the country with the farmers, _____ has a good effect on my life.
A. that, which
B. when, which
C. which, that
D. when, who
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