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【单选题】
关于JPEG图像格式,正确描述的是_________。A.
JPEG图像格式是一种无损压缩格式
B.
JPEG图像格式具有不同的压缩级别
C.
JPEG图像格式可以存储动画
D.
JPEG图像格式支持多个图层
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【单选题】It can't be Jack, he has gone to America.
A.
能够，表示某种能力
B.
可以，表示允许
C.
可能，表示猜测
D.
肯定，表示事实
【单选题】—This pair of shoes belong to Jack. He likes this kind very much. —It __ be his. It's too large for him. [ ]
A.
can; can't
B.
may; needn't
C.
must; mustn't
D.
must; can't
【单选题】常发公司2012年2月10日销售商品应收大海公司的一笔应收账款1200万元,2012年6月30日计提坏账准备150万元,2012年12月31日,该笔应收账款的未来现金流量现值为850万元。2012年12月31日,该笔应收账款应计提的坏账准备为( )。
A.
300万元
B.
200万元
C.
350万元
D.
250万元
【简答题】The ancestors of the English are , while the Scots, Welsh and Irish the .
【简答题】Fill in the blanks 1. For those with family members far away, the cellphone is very important in staying ________. (connect). 2. The pilot asked all the passengers on board to remain ______(seat) as t...
【单选题】It can't be Jack. He has gone to America.
A.
可能，表示猜测
B.
能够，表示能力
C.
可以，表示允许
D.
肯定，表示事实
【单选题】听力原文：Jack, thank you for inviting us to dinner in your house tomorrow. But I'm extremely sorry that my wife and I won't be able to make it. The speaker feels sorry because______.
A.
he can't attend tomorrow's dinner.
B.
his wife can't attend tomorrow's dinner.
C.
the couple can't attend tomorrow's dinner.
D.
the couple would be unable to cook the dinner.
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