CPR时的首选药物是________________________。
参考答案:肾上腺素
—What does Ann think of studying English?
—She thinks the best way to learn more English is to learn by ______aloud. [ ]
A. listening
B. writing
C. reading
D. using
一般顾客的识别标准为()。
A.只购买食品
B.购买商品价值一般不高
C.消费具有随机性
D.男性多于女性