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【单选题】
经过直线x+3y+7=0和3x-2y-12=0的交点,圆心为(-1,1)的圆的方程是( )A.
+ =25
B.
C.
+ =5
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举一反三
【判断题】If the MNC is the original investing corporation，it is known as the parent MNC.()
A.
正确
B.
错误
【判断题】信贷额度亦即贷款限额,是借款人与银行在协议中规定的允许借款人借款的最高限额。在这个信贷额度内,银行必须满足企业的借款要求。( www.TopSage.com )
A.
正确
B.
错误
【单选题】It can be inferred from the passage that studies of endangered species ______.
A.
have revealed little of importance to improve wildlife preservation
B.
are more likely to be carried out when a financially concerned interest group is involved
C.
sometimes endanger the very species they hope to protect
D.
show that endangered species can never be saved except at great cost
【单选题】As the backbone of the North American continent, ______is known as the Continental Divide and separates the major river system of the United States.
A.
Rocky Mountains
B.
Appalachian Mountains
C.
Ben Nevis
D.
The Pennines
【单选题】Which is NOT a difference between review paper and research paper?
A.
Research papers present results of experiment while review papers summarize results and ideas from other sources.
B.
Research papers often have standard structure while review papers often do no have standard headings
C.
Research papers use graphics or images to help present original data but review papers uses graphics to explain concepts rather than presenting experimental data or graphics.
D.
Research papers can be identified from their titles and abstract but review papers cannot be revealed from their titles and abstract.
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