抑制蛋白质合成的起始阶段，使核蛋白体分解的药物是 A．紫杉醇 B．顺铂 C．氟尿嘧啶

阅读下面的来信，判断正(√)误(×)。

Dear Mom

       I arrived in Guilin yesterday. What a beautiful place! The people here are kind and I make some new

friends. Guess who I met here today? Sam, my English teacher! He was working here as a volunteer(志愿

者). He worked in a middle school. He showed me around the city. I also went to his school. His students

like him very much. By the way, I bought some presents for you and Dad. I bought a silk clothes and a silk

tie for you two. They are very nice! I am going to fly to Beijing next Friday.

( ) 1. Tom went to Guilin yesterday.

( ) 2. Sam is Tom's Chinese teacher.

( ) 3. Tom bought a silk clothes for his grandmother.

( ) 4. Guilin is in the north of China.

( ) 5. Tom is going to go back to Beijing by plane.

以下关于非少尿型肾衰叙述错误的是（）

A.血尿素氮降低

B.血肌酐速度升高

C.肌酐清除率迅速降低

D.不伴有少尿表现

E.近年有增多趋势

作出仲裁裁决后，当事人一方不履行时，对方可以( )。

A．申请重新仲裁

B．申请仲裁庭执行

C．上诉

D．向法院申请执行

有关血管网织细胞瘤的描述不正确的是（）

A.为良性肿瘤

B.可多发

C.瘤结节与囊大小无关

D.囊性病程长，实性短

E.实性肿瘤术前可行血管栓塞