One of the guidelines in writing the C code for a software tool is as follows: write code that is as clear and as simple a (76) . The C language can be difficult to read if you combine all (77) features in a single statement. Break complicated (78) into several easy to understand statements for the (79) of readability. This style helps to make your programs more (80) and error-free.

80（）

A.readable

B.reusable

C.possible

D.semantic

E.syntactic

F.constructions

G.safe

H.impossible

I.sake

J.structure

主要通过扩张血管、促进血液循环而产生发汗作用的药物是（）

A.麻黄

B.桂枝

C.葛根

D.防风

E.柴胡