— When _____________ he leave for Shijiazhuang?
— This afternoon. [ ]
A. does
B. is
C. do
答案:A
陆相沉积是指()环境上形成的沉积体。
A、陆地
B、湖泊
C、海洋
D、冰川
A.I有=3/2A,Im=3A
B.I有=3A,I有=3A
C.I有= A,I有 A
D.I有3A,Im=6A