基础按使用材料可分为()、()、()和()等。
参考答案:砖基础、毛石基础、灰土基础、混凝土基础、钢筋混凝土基础任选四个为答案
用所给词的适当形式填空。
1. Do your homework as _________ (careful) as you can.
2. Why did Jack look _________ (happy)? Because he failed his math exam.
3. ________ (luck), we didn't miss the concert that day.
4. A young man was seen _________ (run) down that street at 10 pm last night.
5. We are very ________ (pride) of our country.
6. In the_________ (west) parts of China, many people are still poor.
7. You had better _________ (finish) your homework before you go to bed.
8. Sports and art activities make our school life ________ (color).
9. For ________ (far) information, please call me.
10. If you want to keep fit, you need to eat ________ (health)
有关还原当量的穿梭叙述错误的是()
A.2H经苹果酸穿梭在线粒体内生成3分子ATP
B.2H经α磷酸甘油穿梭在线粒体内生成2分子ATP
C.胞液生成的NADH只能进线粒体才能氧化成水
D.2H经穿梭作用进入线粒体需消耗ATP
E.NADH不能自由通过线粒体内膜