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【判断题】
两个相邻含水层之间一定存在一个绝对的隔水层。A.
正确
B.
错误
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举一反三
【单选题】________ information, please contact Amy ________ 56676551.
A.
For further; on
B.
With further; at
C.
For farther; over
D.
With farther; on
【单选题】按1:2的比例绘制一个长为30mm的机件,下列说法正确的是
A.
画图尺寸30mm, 标注尺寸60mm
B.
画图尺寸60mm, 标注尺寸30mm
C.
画图尺寸15mm, 标注尺寸30mm
D.
画图尺寸15mm, 标注尺寸15mm
【单选题】Mosley, head of the FIA, has promised ______.
A.
further actions to force speeds up
B.
further actions to force speeds down
C.
no further actions to force speeds up
D.
no further actions to force speeds down
【单选题】按2:1的比例绘制一个长为30mm的机件,下列说法正确的是( )
A.
画图尺寸30mm, 标注尺寸60mm
B.
画图尺寸60mm, 标注尺寸30mm
C.
画图尺寸15mm, 标注尺寸30mm
D.
画图尺寸60mm, 标注尺寸60mm
【单选题】The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
A.
if
B.
till
C.
as
D.
while
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