He wants to learn ____ music. [ ]
A. at
B. about
C. on
D. with
答案：B
用括号内所给词的适当形式填空。
1. Tigers ______ (be) from Africa.
2. Let's ______ (swim) in the lake (湖).
3. Why ______ she ______ (want) to see the dolphins?
4. Please see the pandas ______ (one).
5. The koalas are very ______ (interest).
一前置胎盘孕妇，出现 * * 大流血，需紧急转送至上级医院，转送前所需处理是（）.
A.输血、输液
B.消毒下进行 * * 填塞纱条
C.腹部加压包扎
D.无须上述处理，尽快护送转院
E.给予宫缩剂
