The primary barrier of a bulk carrier is formed by().
A. the single skin side shell and the inner bottom
B. deck strips,hatch covers and coamings
C. the vertically corrugated transverse watertight bulkheads
D. the single skin side shell between topside and hopper tanks,and the cross deck strips,hatch covers and coaming
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口测法正常体温()。肛测法正常体温()。
A. 36.3~37.2℃
B. 36.5~37.7℃
C. 37.3~38.0℃
D. 38.1~39.0℃
E. 39.1~41.0℃
瑞士心理学家()的发生认识论认为,个体认知发展依次经历了感知运算水平、前运算水平、具体运算水平、形式运算水平的发展过程。
当涡轮发动机飞机的速度超过某一速度时飞机就会解体。
A. 正确
B. 错误