— I don’t know whether he will come this morning. If he ____, I ____you

— Thank you very much.

A．comes; will tell

B．comes; tell

C．will come; will tell

D．will come; tell

有腐蚀性的药品是（）

A.松节油

B.氯化钡

C.氢氧化钠

D.甘露醇

E.乳酶生