问题
单项选择题 A型题
细菌所具有的细胞器是()
A.高尔基体
B.内质网
C.溶酶体
D.线粒体
E.核糖体
答案
参考答案:E
解析:除核糖体外以上细胞器都是真核生物体内所具有的。
细菌所具有的细胞器是()
A.高尔基体
B.内质网
C.溶酶体
D.线粒体
E.核糖体
参考答案:E
解析:除核糖体外以上细胞器都是真核生物体内所具有的。
综合填空,选择所给单词并用其适当形式填空。 | |
manners. It's 1______ to follow them. When you sit down at the table, take your napkin and 2______ it on your lap. The dinner always 3______ with a small dish. When you start eating, you should keep the fork in your 4______ hand. It's polite to finish 5______ everything on your plate, so don't take 6______ food than you need. Maybe you don't know whether it's polite or not to speak loudly at the table. The answer is that you should speak 7______ and smile a lot. When you drink to 8______, you'd better raise your glass and take only a sip. Remember not 9______ too much. If you can't remember these 10______. Just do as other people do. |