【单选题】中药有效成分为挥发油或其他挥发性成分时,可采用何法提取
【单选题】—— What do you think of my speech? Being watched by so many people, I always feel nervous. —— You ______ quite well, though.
【简答题】存储容量是指 ,有一个存储器,其地址线为 A7---A0 ,数据线为 D11---D0 ,其存储容量是 。
【单选题】Do you think the driver is being helpful?
A.
Yes, he is. He answers the passenger’s questions in a polite way.
B.
Not really. His answers are too brief. He is not being polite.
C.
Not sure. His answers should be longer.
D.
Yes, he is. He is telling the passenger exactly the information she needs.
【简答题】蒲焼,一般为常见食材多数是以( )烧烤而成。吃时一般都会撒上含有中药成分的( )粉。以增加口感、帮助消化。
【单选题】Do you think it necessary that we have all the chairs_________?
【单选题】Do you think there's anything______of in having no money?