气性坏疽的潜伏期一般是()。
A.12小时内
B.1~4天
C.5~7天
D.8~14天
E.15~17天
参考答案:B
The farmers eat only 20 percent of fruits they grow, the rest of which _____ sold to the supermarket.
A.is
B.are
C.was
D.were
骨盆的倾斜度:男性约为()度,女性约为()度。