湿邪的致病特点是( ) A．凝滞 B．重浊 C．善行 D．炎上

阅读短文，根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。

      It was a sunny day. Mr. Black went to town on business. On his way home, he found in front of him a big

pile of hay (干草). He got down from his horse. The hay had fallen off a wagon (马车). A boy was standing by

the wagon and looked worried. He was sorry for the little driver. "1.       " Mr. Black said. "Come with me to the

village over there, and I will find someone to help you".

      In the village Mr. Black's friend asked him and the boy to have dinner, Mr. Black enjoyed the man's dinner,

but he saw the boy still looked worried. "Dad won't like this!" the boy said in a low voice. "Don't worry too

much," said Mr. Black. "Just be careful next time. Now have your dinner, and you needn't worry."

      "But I was here for a long time. 2.       " "Oh, come on now," said Mr. Black. "Your dad will understand, he

will be glad if he knows that you have had a good dinner. I will go with you and explain what has happened. 

3.        " The boy answered, "4.        "

A. By the way, where's your dad?

B. He's under the pile of hay!

C. His dad asked him to leave as soon as possible.

D. Now don't worry, my boy.

E. Dad will be angry.

一 Good morning! Boys and girls.

— _____.  [ ]

A. Good morning, teacher    

B. Goodbye,teacher

C. Good afternoon, teacher

对根尖起保护作用的是

A．伸长区

B．根冠

C．成熟区

D．分生区

对梯形铅挡块技术错误的描述是()

A、使所需遮挡的部位更准确 

B、使剂量分布更合理 

C、可减少穿透半赢区 

D、用7Cm厚的铅块可全防护 

E、体表需挡宽度，与梯形铅块的下底长度相等

外商投资企业第一次办理外汇资本金结汇，不需填写如下哪种单据（）.

A、外汇资本金结汇支付申请书。

B、外商投资企业资本金结汇支付命令函。

C、上次资本金结汇所得人民币资金使用情况明细清单。

D、卖出外汇申请书。