百部既能杀虫灭虱,又能()
A.润肺止咳
B.宣肺止咳
C.敛肺止咳
D.清肺止咳
E.温肺止咳
参考答案:A
.I’d like to settle down somewhere ______the climate is mild and the sun shines all year long.
A.which
B.that
C.where
D.when
若甲天线的增益为20dBd,乙天线的增益为14dBd,则可以说甲天线的增益比乙天线的增益大6dBm。