Listen to the dialogue and choose the best answer to the questions 17、1817.
A. She was running a fever.
B. She had to run a long way to the meeting.
C. She was involved in a car accident.
D. She had her car stolen near the supermarket.
查看答案
18
A. They don't go to see the films as often as they did.
B. They've ever dreamed of going to the moon once.
C. They lived in the same neighborhood when young.
D. They like contemporary movies better than before.
10. —Don't go ona voyage alone.—Don't worry. .
A. I don't
B. I won't
C. I can't
D. I haven't
右心房的入口是（ ）
A. 肺静脉口
B. 肺动脉口
C. 上、下腔静脉口
D. 右房室口
E. 左房室口
影响收缩压的主要因素是哪一项（ ）
A. 外周阻力
B. 心率
C. 搏出量
D. 循环血量
E. 大动脉管径
微信支付 
支付宝支付