正确的使用系安全带可以将前座乘员的伤亡率降低（）。
A.10%
B.30%
C.45%
D.60%
参考答案：C
(一) 根据各级对话内容，从下面方框中提供的5个选项中选出能填入空白处的最佳选项
A: Would you sign the register please, SirB: Sure. (), does my room have a private bathA: Certainly. Every room in this hotel has a private bath.
A．Thank you
B．It’s my pleasure
C．By the way
D．No, of course not
E．Never mind
为什么说肾着汤足治在脾而非治在肾
