If he did not know them，he would greet them with a few words about weather，but if he did，he would ask about their families or make jokes，always cutting his cloth ______his customers.

A．according to

B．due to

C．instead of

D．up to

下列哪种是α-葡萄糖苷酶抑制剂常见不良反应（）

A.低血糖症

B.腹胀和腹泻

C.下肢浮肿

D.乳酸性酸中毒

E.充血性心力衰竭