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【判断题】
2019年12月30日,高铁近日正式开通运营,这是我国《中长期铁路网规划》中“八纵八横”高速铁路网北京至张家界通道的重要组成部分,是中国第一条智能化高铁线路。A.
正确
B.
错误
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【单选题】Many companies give away small quantities of their products as samples _____ people can try them before buying them.
A.
if
B.
now that
C.
since
D.
so that
【单选题】Read this paragraph, and decide which general statement is supported by the other material in the passage? Many people feel that violence on television is harmless entertainment. However, we now know ...
A.
Many people feel that violence on television is harmless entertainment.
B.
However, we now know that TV violence does affect people in negative ways.
C.
One study showed that frequent TV watchers are more fearful and suspicious of others.
D.
They try to protect themselves from the outside world with extra locks on the doors, alarm systems, guard dogs, and guns.
【简答题】The following half reaction “AgCl + e - Ag + Cl - ” is that of Ag/AgCl electrode generally used as ( ).
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