维生素B6临床用于
A.脚气病
B.妊娠呕吐和放射病呕吐
C.异烟肼中毒
D.脂溢性皮炎
E.佝偻病
参考答案:B, C, D
— I called you last night, but nobody answered.
— Oh, I usually _____ off my call phone by 8:00 p.m. [ ]
A. switched
B. have switched
C. switch
D. had switched
1873年,船政的中国员工已经能自行设计造船制机,清廷为了表彰洋员“教导功成”,于1874年颁发了御赐金牌,金牌的正面为“大清御赐金牌”,背面为“()”。
A.教导功成
B.福州船政成功
C.教导成功
D.福州船政功成