题目内容

Damage to the retina is caused by ______ .

A. obstructions to blood circulation
B. loss of pigment in the epithelium
C. pressure on the central nervous system
D. All of the above

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It is easy for men to find a job.

A. Y
B. N
C. NG

According to the passage, the Whitehead research has taken a big step in ______.

A. understanding cancer
B. curing cancer disease
C. eliminating cancer
D. preventing cancer

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A. nearly
B. nearby
C. beyond
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Mr. Anderson's boss was a woman.

A. Y
B. N
C. NG