Many people agree that _________ knowledge of English is a must in _________ international trade today.

A． a; /

B．the; an

C．the; the

D．/; the

患儿5岁。发热、腹痛数天，伴一侧腮腺肿大，外周血检测正常，应最先进行的检查是（）

A.尿常规检查

B.胸部X线片

C.血糖及尿糖

D.转氨酶及肝功能检查

E.血清及尿淀粉酶测定