【判断题】酵母菌是单细胞真核微生物,酵母菌细胞的形态通常有球形、卵圆形、腊肠形、椭圆形、柠檬形或藕节形等。
【单选题】--- a month do you do voluntary work ? ---Twice a month.
【简答题】下图为酵母菌细胞结构示意图。请回答下列问题: (1)酵母菌细胞结构与菠菜叶肉细胞相比,最主要的区别是酵母菌________;与蓝藻细胞相比,最主要的区别是酵母菌__________。 (2)图中含有RNA的结构有_______(填序号)。 (3)图中不能直接分解葡萄糖但能释放CO 2 的结构是_______(填序号)。 (4)为制备酵母菌原生质体,需用酶解法除去结构①,但应在________溶液中...
【简答题】酵母菌细胞形态有()、()、()、()或()等多种,其繁殖方式有(1)()和(2)(),其中(1)又有()、()和()。
【单选题】Many dog owners treat their pets like human beings, ________ if they do not have children of their own.
【单选题】--Hi, Lydia. Are you going to the concert on Friday? - -I’d like to. But there are so many probl
A.
13. --Hi, Lydia. Are you going to the concert on Friday? - -I’d like to. But there are so many problems ____. A.remaining to be settled
D.
remained to be settled
【单选题】——Which month of the year do you like? ——July, the ___________month because summer vacation begins in this month.
【单选题】电网谐波的产生,主要在于电力系统中存在各种( )元件。