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【单选题】
化脓性脑膜炎患儿的脑脊液检查可发现A.
脑脊液静置12~24小时后可有蜘蛛网状膜形成
B.
脑脊液中氯化物含量明显增加
C.
脑脊液中糖的含量一般正常
D.
脑脊液中蛋白含量明显降低
E.
脑脊液外观混浊,呈脓性
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【单选题】Fresh Water Shortage A water crisis is about to explode. Fresh water is a finite resource. The amount of fresh water supply provided by the hydrological cycle does not increase. Water everywhere on th...
A.
Y
B.
N
C.
NG
【单选题】Fresh water is used for the cooling of the cylinder jackets and _____of the main engine.
A.
cylinder covers
B.
crosshead
C.
exhaust manifold
D.
main bearing
【简答题】依次填入下列各句横线处的词语，最恰当的一组是（ ）
【单选题】Fresh water is used for the cooling of cylinder jackets and （） of the marine diesel engine.
A.
cylinder covers
B.
lubricating space
C.
crosshead
D.
exhaust manifold
【单选题】Fresh water is used for cooling of cylinder jackets and _____ of the marine diesel engine.
A.
Cylinder covers
B.
Lubricating space
C.
Crosshead
D.
Exhaust manifold
【单选题】Fresh water is used for the cooling of cylinder jackets and ( ) of the marine diesel engine
A.
cylinder covers
B.
lubricating space
C.
crosshead
【单选题】（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.
A.
The fuel oil
B.
The lube oil
C.
The sea water
D.
The fresh water
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