质量相同的两种气体A、B,在同温、同压下,A的密度小于B的。下列说法错误的是( ) A.A的摩尔质量比B大 B.A占的体积比B大 C.A的物质的量比B大 D.A的分子数比B多
What I need is_____ book that contains ______ABC of oil painting.
Jenny nearly missed the flight______ doing too much shopping.
The CDs are on sale! Buy one and you get ______ completely free.
I’m sure that your letter will get______ attention. They know you’re waiting for the reply.
All the dishes in this menu, ______ otherwise stated, will serve two to three people.