搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下述哪种凝血因子不存在于血浆中( )

A．凝血因子Ⅴ
B．凝血因子Ⅲ
C．凝血因子Ⅹ
D．凝血因子Ⅻ

答案

参考答案：B

解析： 本题主要考查的知识点是凝血因子Ⅲ的分布。
[要点透析] 在凝血因子中，除了凝血因子Ⅲ分布于组织外，其余都存在于血浆中。

单项选择题

在UML动态建模机制中，关于顺序图说法正确时是（）

A.消息线的箭头说明消息的类型，如同步，异步或简单。画一条线指向接收对象，包括一个箭头，实心表示异步讯号，棍形箭头表示调用操作

B.当一个操作调用它本身时，消息总是异步的

C.在顺序图中可以描述如何创建和破坏对象，并把它作为描述情节的一部分，一个对象可以通过一条消息来创建一个对象。被创建的对象的对象符号在创建它的地方

D.消息也可以有条件，只有条件为真时才能发送和接收消息。条件被用来抽象分支或决定是否发送一条消息。如果用条件来抽象分支，则各个分支是异步的
查看答案
单项选择题

George is a young man. He does not have a wife, but he has a very big dog and he has a very small car, too. He likes playing tennis. Last Monday he played tennis for an hour at his club, and then he ran out and jumped into a car. His dog came after him, but it did not jump into the same car. It jumped into the next one.
"Come here, silly dog!" George shouted at it but the dog stayed in the other car.
George put his key into the lock of the car, but the key did not turn. Then he looked at the car again. It was not his! He was in the wrong car! And the dog was in the right one! "He’s sitting and laughing at me!" George said angrily. But then he smiled and got into his car with the dog.

George has a beautiful new car.

A. Right.


B. Wrong.

C. Doesn’t say.
查看答案