下面程序段中c的二进制值是______。 char a=3,b=6,c； c=a^b＜＜1；
A. 00001011
B. 00001111
C. 00011110
D. 00011100
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格林-巴利综合征有肢体感觉障碍的病人不宜( )
A. 经常翻身
B. 睡于软床上
C. 用温水擦浴
D. 使用热水袋
E. 用乙醇按摩
What can be said about the varieties of homes
A. The early homes were larger than the more modem breeds.
B. The only true wild homes left in the 20th century am in the Middle East.
C. The oldest breed of the modem horses is said to be the Arabian.
D. Medieval Knights preferred fast, active horses.
What are some of the characteristics of the horse
A. Poor memories.
B. More intelligent than the dog.
C. Great loyalty.
D. In some areas they can exceed the abilities of man.
只要企业存在固定成本，在息税前利润大于0的情况下经营杠杆系数必( )。
A. 与销售量成正比
B. 大于1
C. 与固定成本成反比
D. 与单价成正比
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