产于山东的道地药材是（） A.党参 B.阿胶 C.人参 D.乌头 E.菊花

依生长类型，园林树木可分为（）

A.乔木类

B.灌木类

C.形木类

D.丛木类

E.果木类

F.藤木类

下列垂体瘤，应首选药物治疗的是（）。

A.促性腺激素瘤

B.生长激素瘤

C.催乳素瘤

D.促肾上腺皮质激素瘤

E.促甲状腺激素瘤

主治湿温时疫，湿热并重的首选方剂是（）

A.甘露消毒丹

B.藿香正气散

C.香薷饮

D.连朴饮

E.三仁汤

进行性肌营养不良（）

A.血清钾降低

B.眼外肌麻痹为首发症状

C.血清肌酸激酶异常增高

D.蓬毛样红纤维

E.皮肤牛奶咖啡斑

You probably won’t be shocked to find out that the inventor of tire rubber is Charles Goodyear, as he’s the only guy on the list to actually get his name attached to the end product. (46) It wasn’t easy coming up with a form of rubber tough enough to withstand the drag racing and car chases everyone envisioned the day the automobile was invented. In fact, if there was one man who should have given up his life dream, it was Goodyear. (47)The man spent time in and out of prison, lost every friend he had and starved his children in his tireless pursuit of a per form of rubber.

(48) After his first two years of tinkering and failing with primitive rubber in the 1830s, Goodyear and his family were camping out in an abandoned factory and fishing for sustenance. This is when he made a huge breakthrough: He’d use acid to smooth out and toughen rubber! The government bought 150 mailbags made of the stuff and the rest is...

Oh, wait. They were all defective. The process didn’t work and Goodyear was ruined. Again.

Finally in 1839, Goodyear wandered into a general store with another failure of a formula. The crowd watched and laughed at him. (49)In a rage, he began to shake his fist, flinging a piece of his rubber onto the hot stove top.

After inspecting the charred remains, he realized that he had just found a way to make durable, weatherproof rubber. (50) Despite what we’re sure were numerous failed "now let’s try setting this on fire to see if it improves it!" experiments, an empire was born.

(46) It wasn’t easy coming up with a form of rubber tough enough to withstand the drag racing and car chases everyone envisioned the day the automobile was invented.