单项选择题

Any equipment that does not arrive in perfect ____ may be returned to MQZ Electronics free of charge.

A.development
B.situation
C.problem
D.condition
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单项选择题
The fact is that _____ is given to seniority and many people would rather be the tail of a lion than the head of a dog.
A.priority
B.focus
C.emphasis
D.attention
单项选择题
关于贫血的叙述，正确的是
A.成年男性Hb120g/L称贫血
B.婴儿Hb浓度比成人低
C.高原地区居民的Hb浓度比平原地区居民低
D.脱水对贫血的诊断无影响
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