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【单选题】
如果配电箱的长为600mm,宽为500mm。则其半( )m
A.
1.0
B.
1.1
C.
1.2
D.
2.2
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参考答案:
举一反三
【单选题】Mike failed to finish his homework on time, so he tried to avoid _______ his teacher.
A.
meet
B.
to meet
C.
to meeting
D.
meeting
【简答题】A.He made a sudden turn. B.He tried to avoid hitting the truck. C.He was pursued by the running dog. D.A girl riding a bike crashed into his car.
【单选题】He tried to avoid ______ my questions in class.
A.
to answer
B.
answering
C.
having answered
D.
to have answered
【单选题】已知一个正四棱锥,棱锥的底面边长为 2 ,棱锥的高为 ,则正四棱锥的侧面积为 ,表面积为 _______.
A.
8,12
B.
4,8
C.
4,12
D.
8,16
【简答题】如图,已知正四棱锥P-ABCD的底边长为6、侧棱长为5.求正四棱锥P-ABCD的体积和侧面积. A
【单选题】已知四棱锥 的底面是边长为6的正方形,侧棱 底面 ,且 ,则该四棱锥的体积是(  )
A.
288
B.
96
C.
48
D.
144
【单选题】已知正四棱锥 的侧棱长与底面边长都相等, 是 的中点, 则 所成的角的余弦值为
A.
B.
C.
【单选题】He tried to avoid ___ my question.
A.
to answer
B.
answering
【单选题】He tried to avoid________my questions in class.
A.
to answer
B.
answering
C.
to have answered
D.
having answered
【单选题】He tried to avoid the barrier to his carrying out the plan.
A.
root
B.
obstacle
C.
danger
D.
advantage
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