–– Will you go to the park after school?

––No, I’ll go         home, for my mother is waiting for me for supper.

A．along

B．straight

C．on

D．straightly

不属于免疫抑制剂的是（）

A.环磷酰胺

B.硫唑嘌呤

C.肾上腺素

D.皮质激素

E.环孢素