使用计算器时要先按ON/C这个键．______．

下列药物需要检查的杂质

肾上腺素

A．结晶性
B．酸度
C．碱度
D．酮体
E．C组分

以下哪些组件属于BO系统（）。

A、AAA

B、CRD

C、EPG

D、CSG

Millions of Americans and foreigners see GI.Joe as a mindless war toy, the symbol of American military adventurism, but that’ s not how it used to be. To the men and women who (1) in World War I1 and the people they liberated, the GI. was the (2) man grown into hero, the pool farm kid torn away from his home, the guy who (3) all the burdens of battle, who slept in cold foxholes, who went without the (4) of 1hod and shelter, who stuck it out and drove back the Nazi reign of murder. This was not a vohmteer soldier, not someone well paid, (5) an average guy, up (6) the best trained, best equipped, fiercest, most brutal enemies seen in centuries.

His name is not much. GI. is just a military abbreviation (7) Govermnent Issue, and it was on all of the article (8) to soldiers. And Joe A common name for a guy who never (9) it to the top. Joe Blow, Joe Magrae... a working class name.The United States has (10) had a president or vieepresident or secretary of state Joe.

GI. Joe had a (11) career fighting Geman, Japanese, and Korean troops. He appears as a character, or a (12) of American personalities, in the 1945 movie The Story of GL Joe, based on the last days of war correspondent Ernie Pyle. Some of the soldiers Pyle (13) portrayde themselves in the fihn. Pyle was famous for covering the (14) side of the warl, writing about the dirt-snow-and-mud soldiers, not how many miles were (15) or what towns were captured or liberated. His reports (16) the "willie" cartoons of famed Stars and Stripes artist Bill Maulden. Both men (17) the dirt and exhaustion of war, the (18) of civilization that the soldiers shared with each other and the civilians: coffee, tobacco, whiskey, shelter, sleep. (19) Egypt, France, and a dozen more countries, G. I. Joe was any American soldier, (20) the most important person in their lives.

1（）

A.performed

B.served

C.rebelled

D.betrayed

据国外研究结果，专业技术人员关注的前四个因素依次为：（）

A、个人成长

B、工作自主

C、业务成就

D、金钱财富

根据《中石化石油工程技术服务股份有限公司安全事故管理办法》，下列哪些事故属于较大事故？（）

A.造成3人以上10人以下死亡，或者10人以上50人以下重伤；

B.造成1000万元以上5000万元以下直接经济损失；

C.Ⅲ类放射源丢失、被盗、失控，或放射性同位素失控导致1人以上10人以下急性重度放射病、局部器官残疾。

D.造成5人以上30人以下死亡，或者10人以上50人以下重伤。