The terrible disease, ______ already kills about one million people each year, has grown resistant ______ standard medicine..

A．which, to

B．that, to

C．that, against

D．which, against

在Excel中，要输入一年中的各个月份，但不手动键入每个月份，应使用（）。

A.记忆式键入。

B.自动填充。

C.Ctrl+Enter。