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【单选题】(2019·哈尔滨期中)下列有关酵母菌、乳酸菌和T2噬菌体的叙述,正确的是( )
A.
酵母菌、乳酸菌和T2噬菌体都属于生命系统中的个体层次
B.
T2噬菌体可利用酵母菌细胞内的核糖体来合成自身的蛋白质
C.
酵母菌和乳酸菌无氧呼吸的产物不同,有氧呼吸的产物相同
D.
乳酸菌和T2噬菌体的遗传物质相同,而含有的核酸种类不同
【单选题】Walking in the woods makes Jenny think of the happy days in the countryside with her grandma. It is a favorite holiday of ______.（2014黑龙江哈尔滨）
A.
his
B.
her
C.
hers
【单选题】我国冰雪艺术活动主要集中在两江流域，两江流域是指____________。China's ice and snow art activities are mainly concentrated in the Liangjiang River Basin, which refers to _____.
A.
黑龙江和松花江Heilongjiang and Songhua River
B.
黑龙江和嫩江Heilongjiang and Nenjiang River
C.
黑龙江和乌苏里江Heilongjiang and Wusuli River
D.
松花江和辽河Songhua River and Liaohe River