水分子中,∠HOH角度为()。
A、102°40′
B、103°40′
C、104°40′
D、105°40′
参考答案:C
行车中遇有非机动车准备绕过停放的车辆时,应怎样做?
A.鸣喇叭示意其让道
B.让其先行
C.加速绕过
D.紧随其后鸣喇叭
Li Hua, who was busy preparing a report, couldn't the loud noise, so he kept all the windows
shut all day long.[ ]
A. put up with
B. come up with
C. catch up with
D. keep up with