在相同条件下，A容器中的CH₄与B容器中的NH₃所含氢原子数相等，则两个容器的体积比是(    )

A．4∶3

B．2∶3

C．3∶4

D．3∶2

What did he do().

A.He telephoned me.

B.He picked up the phone.

C.He put the receiver down.

D.He put my hanger up.