题目内容
(请给出正确答案)
[单选题]
--- __ --- Once a month()
A.How do you go to the library
B.How often do you go to the library
C.When do you go to the library
答案
B、How often do you go to the library
如果结果不匹配,请 联系老师 获取答案
A.How do you go to the library
B.How often do you go to the library
C.When do you go to the library
B、How often do you go to the library
A.1.2 mo/(L·min)
B.6 mo/(L·min)
C.0.6 mo/(L·min)
D.0.4 mo/(L·min)