植物果实内的种子数目取决于（）。A.受精卵的数目和子房内胚珠的数目 B.子房内胚珠的数目C.受精极核的数目 D.花粉里精子的数
I hope you _________ me. A. to agree with B. will agree to C. to be agree D. will agree with
当黑龙江还是冰天雪地时，海南岛已是春耕大忙了，这是由于我国( ) A．地势高低起伏 B．东西跨经度广 C．南北跨纬度广
Tom has been out of work for half a year, so he is anxious to a job in this company. A.prepare for B.apply for C.wait for D
（2010·江苏赣榆县城头高级中学高三第一次调研考试） 24. The hurricane damaged many houses and business buildings; ___________, it caused 20 deaths. A. or else
42．通常情况下，分子式C63H103O45N17S2的多肽化合物中最多含有肽键 A．63个 B．62个 C．17个 D．16个
— Kelly, who’s the girl _____ glasses in the photo? — It’s me. I used to wear glasses and have long hair. A. by B. of C. on
下列关于摩尔质量的说法正确的是( ) A．水的摩尔质量是18 g B．2 mol水的摩尔质量是1 mol水摩尔质量的2倍 C．任何物质的摩尔质量都等于它的相对分子质
，若
，则实数
的取值范围是___ ▲ ．
