搜题请搜索小程序“爱下问搜题”
问题
名词解释
周期性脱毛
答案
参考答案：
表现为羊毛的季节性脱换，也称季节性脱毛。
选择题
Though he failed many times in election, he never lost _____ heart and at last he was elected _____ president of the USA.
A. /; a
B. a; the
C. his; the
D. /; /
查看答案
单项选择题 A1/A2型题
“水谷之海”指的是（）。
A.胃
B.脾
C.肾
D.肝
E.胆
查看答案
