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【单选题】
在蒸气压缩式制冷循环中，( )与压缩机、冷凝器、毛细管及蒸发器等部件构成了制冷系统。A.
溶质
B.
载冷剂
C.
润滑油
D.
制冷剂
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举一反三
【单选题】载运木材甲板货的船舶在航行中,若发现船舶初稳性高度呈负值,则应采取()的措施予以调整
A.
底部压载舱加注压载水
B.
投弃部分甲板货
C.
将部分木材甲板货移至舱内
D.
A或/和B
【单选题】下列关于口蹄疫的说法中，不正确的是
A.
口蹄疫主要发生在一些偶蹄类动物
B.
口蹄疫会侵染到人，但不会致死
C.
口蹄疫的症状通常是一些水泡或表皮的溃烂
D.
口蹄疫容易导致小孩患上手足口病
【简答题】A．The couple cook the dishes and the children help them. B．The husband does the cooking and the wife serves as the waitress. C．The mother does the cooking while the father and the children wait on the...
【简答题】A．The couple cook the dishes and the children help them. B．The husband does the cooking and the wife serves as the waitress. C．The mother does the cooking while the father and children wait on the gue...
【单选题】In the contract, usually there is a( ) clause to protect the buyer against loss from delay of the shipment of the goods.
A.
payment
B.
shipment
C.
penalty
D.
quality
【简答题】A．The couple cook the dishes and the children help them. B．The husband does the cooking and the wife serves as the waitress. C．The mother does the cooking while the father and children wait on the gue...
【简答题】__________ about wild plants that they decided to make a trip to Madagascar for further research. A. So curious were the couple B. So curious the couple were C. How curious the couple were...
【简答题】英译汉:oocyte
【简答题】A．The couple cook the dishes and the children help them. B．The husband does the cooking and the wife serves as the waitress. C．The mother does the cooking while the father and children wait on the gue...
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