题目内容

平整度指标标准差越小,表明路面越平整。

A. 正确
B. 错误

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吸苯操作时,为什么洗油温度应保持比煤气温度略高几度?

颅脑损伤的病人,腰椎穿刺抽出血性脑脊液,首先应考虑()

A. 脑挫裂伤
B. 硬脑膜外血肿
C. 脑震荡
D. 脑水肿
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Your vessel has lifeboats on both sides. Lifeboat No. 2 is located().

A. forward of lifeboat No. 4 on the starboard side
B. forward of lifeboat No. 4 on the port side
C. aft of lifeboat No. 1 on the starboard side
D. All of the above

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