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【简答题】
第二章 工程图样的画法(测验二).ppt
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】是指政府通过降低货币含金量或明文宣布的方式,降低本国货币对外的汇价。
【单选题】基因突变的特征是（）
A.
分子结构的变化肉眼或光学显微镜观察不到
B.
大多数基因突变对生物本身不利
C.
突变可能自然发生，也可人工诱变，自然突变率一般很低
D.
含A、B、C三项
【简答题】基因突变的特点
【单选题】The management consultant wanted to find out ______.
A.
how hard the investment banker worked during his work hours
B.
when people spent time doing unnecessary work in their office.
C.
if people needed vocation after working hard for a certain period of time
D.
whether Americans were really working harder than they had done before
【单选题】—Is there a fog in the evening ? —There _____ be . I’ll make a phone call to find it out .
A.
must
B.
would
C.
will
D.
might
【单选题】He _________ at the gym at the moment. A. works out B.wo rked out
A.
works out
B.
wo rked out
C.
am working out
D.
is working out
【单选题】A family of five is really a heavy burden, so we all have to work hard to _____. [ ]
A.
find out
B.
work out
C.
carry out
D.
help out
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