Jenny wants Steven ____________ early. [

题型:选择题

问题:

Jenny wants Steven ____________ early. [ ]

A. is

B. being

C. to be

考点:动词不定式
题型:选择题

电梯检修用行灯应使用不大于()V安全电压.

A.24

B.36

C.12

D.48

题型:选择题
根据对话内容,从方框内的六个句子选择五个合适的句子补全对话。
A: Hi, LinTao. Our English teacher said my pronunciation was not good. 小题1:
B: Don’t worry. There is going to be a talk on learning English at the Students’ Palace.小题2:
A: I’d love to. 小题3:
B: A teacher from America.
A: I think the talk will be wonderful.小题4:
B: I hear the teacher will give us many good examples and methods about learning English. And you can listen to the teacher’s pronunciation carefully.
A: Excellent! 小题5:
B: At half past two. We must go now.
A: OK.
A. What the teacher tell us?
B. Would you like to listen to it?
C. Who will give the talk?
D. What should I do?
E. What time is it going to start?
F. How about you?
题型:选择题

下列激素不属肽类激素的是

A.生长激素释放因子(GHR

B.生长激素(G

C.卵泡刺激素(FS

D.雌激素

E.泌乳素(PR

题型:选择题

下列各组中的反应,属于同一反应类型的是           (   )

A.乙烯水化制乙醇;溴乙烷水解制乙醇

B.甲苯使酸性高锰酸钾溶液褪色;丙炔和氢气反应制取丙烷

C.甲苯硝化制TNT;乙炔与氯化氢反应制氯乙烯

D.乙醇脱水制乙烯;溴乙烷脱溴化氢制乙烯

题型:选择题

下列关于生物多样性的说法不正确的是()

A.地球上所有生物及其所拥有的全部基因以及各种各样的生态系统共同构成了生物的多样性。

B.生物多样性是指物种的多样性和生态系统的多样性

C.生物多样性是人类赖以生存和发展的基础

D.生物多样性面临威胁的原因有:生态环境的改变和破坏、人类掠夺式的开发利用、环境污染、外来物种的入侵等

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