电池被深度放电后,充电至它的额定容量的90%至少需要()小时左右。
A、4~6
B、6~8
C、8~l0
D、10~l2
参考答案:D
It’s not ____books you read but the way___ you read them that decides how successfully you gain knowledge .
A.a number of ; in which
B.the number of ; /
C.a good many ; which
D.quite a few ; in which
以间质改变为主的肺炎是()
A.支原体肺炎
B.肺炎球菌性肺炎
C.支气管肺炎
D.葡萄球菌性肺炎
E.放射性肺炎