单项选择题

After the use of the laser beam, surgeons can perform operations which ______.

A．leave the patients with negative effects
B．can. treat only human eye disease
C．do little damage to the patients themselves
D．make the patients need a long time to recover

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热门试题

单项选择题

Which of the following is the main point of the passage

A．Culture shock on friendship.
B．Americans' friendship.
C．Difference between American and Chinese friendship.
D．Similarity of American friendship to Chinese friendship.

单项选择题

Which of the following is not expected by Chinese friends

A．They expect standing friendship.
B．They'd like to establish good relationship between their two families,
C．They expect their friends' help in time of difficulty.
D．They hope to receive hospitality from their friends although they couldn't return.