容易并发产后虚脱容易并发急性左心衰竭
A.重度子癎前期
B.羊水栓塞
C.前置胎盘
D.胎盘早期剥离
E.过期妊娠
参考答案:A,A
I ______ my homework, don't talk with me. [ ]
A. am doing
B. is doing
C. do
D.can do
232. A grander National Day will be observed on Tiananmen Square on October 1 every five years. Which of the following words can replace the underlined word?
A.showed
B.celebrated
C.held
D.set on