在MOD BTSTRXBRD指令中，以下哪些信息必填
A. 单板类型
B. 机柜号
C. 插框号
D. 槽位号
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Do you think ___________ a good idea that he sold the vegetables at half price __________
A. as well as
B. it rather than
C. instead of
D. it, as good as
Why is it important for fuel oil tanks not to be topped off at the inner bottom level when
A. Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill
B. Air pockets may cause the fuel to bubble out of the ullage hole
C. The temperature rise of the fuel will cause an overflow
D. Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened
质量保证检验一般采用()。
A. 无损检验
B. 试验鉴定
C. 在线检验
D. 第三方检验
AP1000安全壳是钢安全壳，由()个环段和上下封头组成。
A. 2
B. 4
C. 6
D. 8
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