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【单选题】
样品烘干以后,正确的操作是A.
从烘箱内取出，放在室内冷却后称重
B.
在烘箱内自然冷却后称重
C.
从烘箱内取出，放在干燥器内冷却后称重
D.
迅速从烘箱内取出称重
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举一反三
【简答题】阅读理解。 Two Goats Two goats started at the same moment from opposite ends to cross a rude bridge that was no wide enough for one to cross at a time. Meeting at the middle of the bridge, neither would gi...
【单选题】Which of the following it NOT true?
A.
Buckingham Palace is opposite to St. James' park.
B.
The house of Buckingham was bought at the price of 28,000 pounds.
C.
The building became known as Buckingham Palace because of George Ⅲ.
D.
Buckingham Palace has been open to the public only in summer months.
【单选题】On the heels of E1 , its opposite, La may soon arrive. In a Weekly Update, scientists at the NOAA Climate Prediction Center reported that as the 2006-2007 E1 faded, suce and subsuce ocean temper...
A.
It brings an end to E1 .
B.
It balances the effects of E1 .
C.
It follows a decrease of ocean temperature.
D.
It causes the ocean temperature to drop rapidly.
【单选题】以上钟表分别对应的时间是?
A.
7:00 4:00 11:00 2：00
B.
2：00 7:00 4:00 11:00
C.
4:00 11:00 2：00 7:00
D.
7:00 4:00 11:00 2：00
【单选题】以下if语句错误的是( )
A.
if(x＜y)；
B.
if(x)x+=y；
C.
if(x＜y)x++；y++；ELSE x--；y--；
D.
if(x!=y)scanf('%d'，&x)；else x++；
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