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【简答题】
机器人按结构形式可分为哪些? A直角坐标机器人 B圆柱坐标机器人 C球坐标机器人 D关节机器人
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反馈参考答案：
举一反三
【简答题】Make sure 确保
【单选题】Jenny pushed the door again to ______ it ______.
A.
make sure if; was closed
B.
make sure that; was locked
C.
found out it; was shut
D.
find out that; was open
【单选题】Why did Chanel test her clothes on moving models? a She wanted to make sure they looked good. b She wanted to make sure that models could move around easily. c She wanted to make sure the material was...
A.
a She wanted to make sure they looked good.
B.
b She wanted to make sure that models could move around easily.
C.
c She wanted to make sure the material was strong enough.
【简答题】已知，则的值为 ．已知 ，则 的值为____．
【简答题】已知 ，则 的大小为（ ）；已知 ，则 的大小为（ ）
【单选题】They surveyed the area __ the tomb faced south.
A.
make sure
B.
making sure
C.
to make sure
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