牵正散组成中含有（） A.全蝎、蜈蚣 B.全蝎、僵蚕 C.蝉衣、全蝎 D.蝉衣、僵蚕

选出错误的一项

( )1. Jim is very taller than Jack.

            A  B    C       D

( )2. How long is the farm from here?

                  A        B      C                   D

( )3. He reads much more carefully than she.

                    A        B             C                         D

( )4. This story is funer than that one.

                  A         B    C       D

( )5. There's few time to play games.

               A        B                C          D

汞主要分布在（）

A.肝脏

B.肾脏

C.脾脏

D.骨骼

E.肺脏

关于原发性肾病综合征用糖皮质激素治疗的原则，以下不正确的是

A．减量要慢

B．长疗程

C．用抗生素预防感染

D．停药慢

E．起始剂量足

如何理解固体废物的二重性？固体废物污染与水污染、大气污染、噪声污染相比有什么特点？