【单选题】What kind of basic sentence pattern does the sentence “I told him that the bus was late” belong to?
【简答题】Learn the words and expressions and then complete the dialogue. 学习这些词语,然后用其正确形式填空。 basic rule基本规则 help that’s the case这样的话 voluntary志愿的 A: Hi, I’m Kevin. I wonder if I can do any 1)______...
【单选题】Alisha began the introduction of her speech by saying: Have you ever been knocked down so hard by life that you didn’t feel you’d ever get back up? This has happened to me many times, the first being ...
【单选题】Alisha began the introduction of her speech by saying: Have you ever been knocked down so hard by life that you didn’t feel you’d ever get back up? This has happened to me many times, the first being ...
【单选题】关于生物固氮的历史,下列正确的是。
A.
德国人H.黑里格尔和H.维尔法特证实了不只有结瘤的豆类才能利用空气中的分子态氮
B.
荷兰人M.W.拜耶林克从根茎中分离出根瘤菌的纯培养
C.
由于研究手段的限制,证实了大多数微生物的固氮能力
D.
由于同位素标记技术(13N、15N)和乙炔还原法的应用,证实了许多原核生物都能固氮,但至今还没有发现肯定能够固氮的真核生物
【简答题】Blank Filling: M: English Language Center. May I help you? W: Yes. I'm calling to _______________more information about your ______________. For example, what kind of courses do you _________ ? M: Fir...