账户式资产负债表分左右两方，右方为负债及所有者权益项目，左方为资产类项目。()
A. 正确
B. 错误
GSM中的采用跳频有什么优点？GSM网络有哪两种跳频方式？
举高消防车回转支撑运转（）小时后，要检查螺栓的预紧力。
A. 100.0
B. 200.0
C. 400.0
D. 500.0
When you hear three short blasts on the ships whistle and the same signal on the general alarm bells, you （）.
A. are required to go to your life-raft
B. are dismissed from drills
C. should point to the man overboard
D. should start the fire pum
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