If I've learned one thing about [1]______, it's that you've got to keep some [2]______in the glove box.

[音频]I've been ________________ , but I'm _________________ .

[音频]I've talked about teachers' ________ _________ inspiring students and pushing you to learn.

Fill in each of the following blanks with the proper form of the given words.I've had no ( ) [respond] to my letter.

【单选题】A.f i ve B.g i ve C.d i ve D.dr i ve A. f i ve B. g i ve C. d i ve D. dr i ve

工作在放大状态的NPN型三极管，其三个电极的电位关系是（）。 A: VE>;VB,VC>;VB,VE>;VC B: VE>;VB,VC<;VB,VE>;VC C: VB>;VE,VB<;VC,VE<;VC D: VB>;VE,VB<;VC,VE>;VC

工作在饱和状态的PNP型晶体管,其三个极的电位应为 A: VE>VB，VC>VB，VE>VC B: VE>VB，VC<VB，VE>VC C: VB>VE，VB<VC，VE>VC

&#91;音频&#93;You know what? I've just ____ high-school boys. （来源：美剧《老友记》） A: been crazy about B: had enough with

4.Tina: I was offered a job in Thailand, but my husband disliked the idea of moving,so we didn't go. I ______ ______ ______ &#91;take&#93;the job. I've always regretted my decision. In my situation, what ______ you ______ ______ &#91;do&#93;?

异交植物或动物可以用（ ）个公式来估计环境方差。 A: VE=VF1 B: VE=VP1 C: VE=VP2 D: VE=1/2(VP1+VP2)