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【判断题】
氢原子光谱是线状光谱A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】Anew security system was installed. ____________, extra guards were hired.A. in addition B. In addition C. and D. plus
【单选题】Extra guards were hired. ____, a new security system was installed.
A.
Addition
B.
In addition
C.
In addition to
【单选题】A new security system was installed, _________ , extra guards were hired.
A.
addition
B.
in addition
C.
addition to
D.
add to
【简答题】3) A new security system was installed. ____________, extra guards were hired.
【简答题】A new security system ______________ (install). In addition, extra guards were hired.
【单选题】A new security system was installed. ____________, extra guards were hired.
A.
Simply stated
B.
Believe me
C.
In that case
D.
In addition
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