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【单选题】
关于钢筋的焊接,下列说法错误的是( )。A.
电渣压力焊应用于柱、墙、烟囱等现浇混凝土结构中竖向受力钢筋的连接，也可用于梁、板等结构中水平钢筋的连接
B.
热轧钢筋的对接连接，应采用闪光对焊、电弧焊、电渣压力焊或气压焊
C.
钢筋骨架和钢筋网片的交叉焊接，宜采用电阻点焊
D.
当环境温度低于﹣5℃，即为钢筋低温焊接；当环境温度低于﹣20℃时，不得进行焊接
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举一反三
【单选题】以下标识符中不全是保留字的是
A.
case for int
B.
default then while
C.
bool class long
D.
goto return char
【单选题】Task 3 Choose the best answers. 1) Farms are afraid that the cold weather will ________ crops.
A.
affect
B.
effect
C.
effective
D.
offend
【简答题】Task 3 Choose the best answers. We should make decisions according to________ conditions.A. difficult B. specific C. essential D. favorable
【单选题】Task 3 Choose the best answers. 1) We should make decisions according to ________ conditions.
A.
difficult
B.
specific
C.
essential
D.
favorable
【单选题】Task 3 Choose the best answers. We should make decisions according to ________ conditions.
A.
difficult
B.
specific
C.
essential
D.
favorable
【简答题】当出站兼调车信号机红灯灭灯时,复示器闪()灯
【单选题】Task 3 Choose the best answers. 1) Eating too much can result ________ obesity.
A.
in
B.
from
C.
to
D.
for
【单选题】以下标识符中不全是保留字的是
A.
case for int
B.
default then while
C.
bool class long
D.
oto return char
【单选题】Task3 Choose the correct Chinese meaning for each word. 1 bug
A.
挖掘
B.
打扰
C.
（程序等的）错误
D.
抛锚
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