The largest number of malnourished children live in ______.
Asia
B. Lain America
C. Europe
D. Africa
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男性，34岁，心电图提示P-R间期＜0.12秒，QRS波群时限＞0.12秒，P-J间期正常，继发性ST-T改变，V1～V6导联QRS波群主波均向上。该例的诊断是
A型预激综合征
B型预激综合征
C型预激综合征
D. 变异型预激综合征
The author wrote this article ______.
A. to criticize Toronto
B. to ridicule Toronto
C. to praise New York
D. to satirize New York
易化扩散和主动转运的共同特点是
A. 要消耗能量
B. 顺浓度梯度
C. 有饱和现象
D. 被转运物都是小分子
______ has the most potential art buyers.
America
B. Hong Kong
C. Japan
D. India
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