性交中断法(体外射精)也是自然避孕法的一种。
参考答案:错
肠病性肢端皮炎的发病年龄为()
A.出生后4~6周
B.断奶后4~6周
C.出生后4~6个月
D.断奶后4~6个月
E.1岁以后
They won't go to the park if it tomorrow. [ ]
A. rains
B. will rain
C. is raining
D. rain