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【单选题】
In the United States , cross-licensing and patent pooling agreements are unlawful if they are:A.
used to divide up territories among competitors.
B.
used to exclude third parties from competing.
C.
used to restrain trade.
D.
Any of the above.
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反馈参考答案：
举一反三
【单选题】绘制斐波那契的第一步是什么?( )
A.
你需要选择图中的一条中线
B.
你需要选择上涨或者下跌趋势中的高点和低点
C.
你需要在中心画一垂直线
D.
你需要连接图中的四个角
【单选题】听力原文： How people first learned to invent words is unknown in other words, the origin of language is a mystery. All we really know is that people, unlike animals, somehow invented certain sounds to exp...
A.
The origin of language is a legend handed down from the past.
B.
The origin of language is a matter that is hidden or secret.
C.
The origin of language is a question difficult to answer.
D.
The origin of language is a problem not yet solved.
【单选题】下列各组离子不能用过量氨水分离的是 ( )。
A.
Pb 2+ 、Ag + ；
B.
Bi 3+ 、Zn 2+ ；
C.
Fe 3+ 、Mn 2+ ；
D.
Cu 2+ 、Cr 3+ 。
【简答题】04-61. Mr. Wells, together with all the members of his family, ____ for Europe this afternoon. (1.0分)A. A. are to leave B. B. are leaving C. C. is leaving D. D. leave
【单选题】听力原文： (32) How men first learnt to invent words is unknown, in other words, the origin of language is a mystery. All we really know is that men, unlike animals, (33) somehow invented certain sounds to...
A.
A legend handed down from the past.
B.
A matter that is hidden or secret.
C.
A question difficult to answer.
D.
A problem not yet solved.
【单选题】听力原文：Q: Which floor is the flat on? (15)
A.
On the first floor.
B.
On the second floor.
C.
On the third floor.
D.
On the fourth floor.
【单选题】听力原文：M：Hi，Kate! Which Class are you in? W：Hi，Tom! I'm in Class Four，Grade Six． Q：Which Class is Kate in? (24)
A.
Six.
B.
Five.
C.
Four.
【单选题】听力原文： How men first learnt to invent words is unknown, in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sounds to express t...
A.
A legend handed down from the past.
B.
A matter that is hidden or secret.
C.
A question difficult to answer.
D.
A problem not yet solved.
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