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问题 选择题

This book must belong _________.   [ ]

A. to Mary's          

B. to Mary  

C. for Mary's          

D. for Mary

答案

答案：B

单项选择题

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

What is the area of square floor X ？（）

(1) The perimeter of the floor is a whole-number multiple of 10.

(2) The diagonal of the floor measures .

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.
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单项选择题

流脑的主要传播途径是( )

A．消化道
B．输血或血液制品
C．呼吸道
D．蚊虫叮咬
E．生活密切接触
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