用吊斗运输时有何要求?
参考答案:吊斗出口到承接面的高度不得大于2m,吊斗底部的卸料门应开启方便,并不得漏浆。
阅读短文,从方框中选择适当的动词,并用其适当形式填空。有的需要加助动词或不定式符号。
An old man died and left his son a lot of money. But the son was a foolish young man, and he quickly (1) ______________ all the money, so that soon he had (2)_______________ left. Of course, when that happened, all his friends disappeared. When he was quite poor and alone, he went to see Nasreddin, who was a kind, clever old man and often helped people when they had trouble.
"My money has been used up and my friends (3) _______________,” said the young man. "What should I do now?"
"Don't worry, young man," answered Nasreddin. "Everything (4) ______________ all right soon again. Wait and you will feel much happier."
The young man was very glad. "Am I going to get rich again then? " he asked Nasreddin.
"No, I didn't mean that," said the old man. "I meant that you would soon get used to being poor and (5) _______________ no friends."
肝药酶系统的组成不包括:
A.黄素蛋白类,如辅酶Ⅱ
B.细胞色素P450和还原型辅酶Ⅰ
C.单胺氧化酶和过氧化物酶
D.血红蛋白类,如细胞色素B5
E.磷酯酶类