病毒性心肌炎可出现的表现是()
A.Beck三联征
B.Ewart征
C.Osler结
D.Janeway结
E.Adams-Stokes综合征
参考答案:E
—Mr. Li, I found a watch on the playground.
—You should try to find out _______.
[ ]
A. whose is the watch
B. who is the owner of the watch
C. whom does the watch belong to
厄尔尼诺现象产生的原因之一是大气中CO2的含量剧增,要想减缓这一现象的发生,最理想的燃料是().
A.天然气
B.氢气
C.液化石油气
D.酒精