抗原分子表面与抗体特异性结合的化学基团称为（）。 A.表位 B.共同抗原 C.交叉抗

That day everyone wondered _____ the baby of four went to her mother’s office.

A．how was it that

B．how it was that

C．how was it

D．how was that

邪壅经络之痉证，如寒邪甚，舌苔薄白，脉浮紧，病属刚痉者。治疗时宜选

A．葛根汤
B．瓜蒌桂枝汤
C．羌活胜湿汤
D．九味羌活汤

阅读下面的短文，将划线部分的句子译成汉语或英语。

Rich or poor, young or old, we all have problems.(70)We should learn how to deal with our problems. Here are some ways.

Firstly, we should learn to forget.(71)有时我们会生朋友的气。Good friendships may be lost. Sometimes children have disagreements and decide not to talk to each other.(72)However, this usually does not last for long. This is an important lesson for us: we can solve a problem by learning to forget.

Secondly, we should regard problems as challenges. Many students often complain about school.(73)他们有太多的作业要做。They think the rules are too strict. Education is an important part of our development. As young people, it is our duty to try our best to deal with each challenge with the help of our teachers.

Don’t worry about our problems.(74)Let’s face the challenges.

CT最早用于颅脑检查，对颅脑疾病具有很高的诊断价值。适用于颅脑外伤、脑血管意外、脑肿瘤、新生儿缺氧缺血性脑病、颅内炎症、脑实质变性、脑萎缩、术后和放疗后复查以及先天性颅脑畸形等。扫描基线有听眦线、听眉线和听眶线。颅脑增强扫描分为平扫后增强扫描和直接增强扫描两种方法。平扫后增强扫描是在平扫基础上加做的增强扫描。直接增强扫描是注入对比剂后的逐层连续扫描。

关于颅脑扫描基线和应用的叙述

错误

A．扫描基线有听眦线
B．扫描基线有听眉线
C．扫描基线有听眶线
D．头部CT检查常以听眶线作为扫描基线
E．经听眉线扫描的图像对显示第四脑室和基底节区组织结构较好