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【简答题】
如图，已知四边形ABCD中，∠A=90°，若AB=3cm，BC=12cm，CD=13cm，DA=4cm，求四边形ABCD的面积．
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【判断题】真正为课程建立起心理学基础的人是赫尔巴特。
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正确
B.
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【单选题】—Must I return the hook tomorrow morning? —No, you _ .You can keep it longer.
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mustn't
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can't
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needn't
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no longer
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no more
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any longer
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【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
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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
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【单选题】自动电话拨号时从话机送出的是 ,不是拨号时用劲越大,速度越快越容易接通。
A.
数字信号
B.
脉冲信号
C.
电压信号
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电流信 号
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【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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【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
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where
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【单选题】You can't expect them to______the job open for much longer— you’ll have to decide whether you wan
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【单选题】真正为课程建立起心理学基础的人是( )。
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夸美纽斯
B.
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【判断题】真正为课程建立起心理学基础的人是赫尔巴特。
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【单选题】—Must I return the hook tomorrow morning? —No, you _ .You can keep it longer.
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B.
can't
C.
needn't
D.
couldn't
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【单选题】I can't wait for you ______. [     ]
A.
no longer
B.
no more
C.
any longer
D.
no time
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【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.
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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
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A.
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B.
脉冲信号
C.
电压信号
D.
电流信 号
查看完整题目与答案
【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
查看完整题目与答案
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