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【简答题】
幼苗的光敏色素含量比绿色幼苗（）
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举一反三
【单选题】单位建筑工程预算的费用项目包括（ ）。
A.
建筑安装工程费用、设备及工器具购置费、建设单位管理费
B.
人、材、机费用及企业管理费、利润、规费、税金
C.
人、材、机费用及企业管理费、工程建设其他费用
D.
分部分项工程费、措施费、规费、税金、工程建设其他费用
【单选题】That ebook is no longer an ordinary book with a screen ________ you can read novels. [ ]
A.
in which
B.
of which
C.
that
D.
where
【单选题】You can't expect them to______the job open for much longer— you’ll have to decide whether you wan
A.
30．You can't expect them to______the job open for much longer— you’ll have to decide whether you want it or not． A．take
B.
hold
C.
let
D.
Have
【单选题】— I'm afraid I'll keep you waiting a while longer. — ____. I can wait all my life only if you can work it out for me. [ ]
A.
Well, excuse me
B.
Oh, come on
C.
Well, let it alone
D.
Oh, my god
【单选题】—Must I return the hook tomorrow morning? —No, you _ .You can keep it longer.
A.
mustn't
B.
can't
C.
needn't
D.
couldn't
【单选题】对于船用电话通信系统的使用与管理的注意事项,说法错误的是
A.
船舶中装有对讲(直通)电话系统、指挥电话系统和自动电话系统,平时维护重点应是前两种
B.
必须消除话机的侧音,以免使受话方不能正确理解另一方的意图,影响指挥联络的效果C、自动电话拨号时从话机送出的是脉冲信号拨号时用劲￥速度越快越容易接通
C.
指挥电话系统出现故障时,应该及时排除故障
【单选题】So you have to leave. How nice it ______ if you ______ a bit longer.
A.
will be can stay
B.
would be could stay
C.
would have been could have stayed
D.
be stay
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