罗布林卡原为历代达赖喇嘛的夏宫,现存西藏最大、最精美的园林。()
参考答案:对
下列各组物质在适宜的条件下反应,其中氧化剂与还原剂的物质的量之比为2:1的是( )
A.
B.Fe2O3+2AlAl2O3+2Fe
C.CaH2+2H2O===Ca(OH)2+2H2↑
D.3NO2+H2O===2HNO3+NO
John shut everybody out of the kitchen ______ he could prepare his grand surprise for the party.[ ]
A. which
B. when
C. so that
D. as if