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【单选题】
下列代码的执行结果是 int a=1; double b=a; System.out.println(b);A.
a
B.
b
C.
1
D.
1.0
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【简答题】It is widely known that languages change over the years, and therefore is not easy to estimate how many languages are currently spoken in the world: the figure commonly known is about 5,000. Most lang...
【单选题】It is not known for sure whether the oil in this area can be _____.
A.
developed
B.
advised
C.
counted
D.
expressed
【简答题】结构保持原有平衡状态的能力称为_________。
【多选题】吊装作业中采用双机抬吊时，应符合以下规定（）。
A.
宜选用同类型或性能相近的起重机，负载分配应合理
B.
单机载荷不得超过额定起重量的70%
C.
两机应协调起吊和就位
D.
起吊的速度应平稳缓慢
【单选题】It is not yet known how these huge stones were conveyed a distance of 380 kilometres 3 000 years ago.
A.
at
B.
for
C.
over
D.
in
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