人体体温每下降1℃,基础代谢率约下降()。
A.1%~2%
B.3%~4%
C.6%~7%
D.8%~9%
E.10%~12%
参考答案:C
I'm not sure which restaurant _____. [ ]
A. to eat
B. eating at
C. to eat at
D. for eating
209PK型转向架采用的是()轴箱定位方式。
A、导框式
B、无磨耗弹性
C、干摩擦导柱式
D、干摩擦导柱式弹性