1kcal能量与1kJ的换算关系是（）。 A.29.3 B.0.239 C.36.7

试述对无牙颌模型的要求。

He eats ______ dinner at 7:30 in the evening. [ ]

A. a

B. an

C. the

D. /

烧成制度包括（）。压力制度是保证温度制度及气氛制度实现的条件。

天王补心丹中配伍桔梗意在

A．载药上行
B．祛痰利咽
C．开上通下
D．宣肺利气

—Jim has made great progress recently. 

— _______ and _______. [ ]

A. So he has;  so have you

B. So he has;  so you have

C. So has he;  so have you

D. So has he;  so you have