汽缸内气体每秒钟对活塞所做的功叫（）。 A.有效功率 B.指示功率 C.有效扭矩

使子宫内膜增生的是()
使子宫内膜由增生期变为分泌期的是()

A.雌激素

B.孕激素

C.雄激素

D.FSH

E.LH

大青叶用高效液相色谱法测定

A．靛蓝
B．色胺酮
C．黑芥子苷
D．异槲皮苷
E．靛玉红

Peter Judd joined the army  26   he was eighteen, and for several months he  27   (teach) how to be a good soldier. He did quite well in everything   ___ 28 shooting. One day he and his friends were practicing ___29_____ (shoot), all of __30___were doing quite well except Peter. After he had shot at the target nine times and had not hit it once, the officer  31   was trying to teach the young soldiers to shoot said, "You’re quite    32    (hope). Peter! Don’t waste your last bullet too! Go behind that wall and shoot yourself with it!"

Peter felt ashamed. He went behind the wall, and a few seconds later the officer and the    33    young soldiers heard the sound of a shot.

"Heavens!" the officer said, "Has that silly man really shot   34   ?" He ran behind the wall    35    (anxious), but Peter was all right. "I’m sorry, sir." he said, "but I missed again.”

在物理学发展的过程中，许多物理学家的科学研究推动了人类文明的进程。在对以下几位物理学家所作科学贡献的叙述中，符合史实的是[ ]

A．法拉第发现了电流周围存在着磁场

B．汤姆生发现了电子，表明原子具有核式结构

C．库仑总结并确认了真空中两个静止点电荷之间的相互作用规律

D．牛顿应用“理想斜面实验”推翻了亚里士多德的“力是维持物体运动的原因”观点

甲与其他两个人合伙设立了一家食品厂，此前，甲曾向乙借款5万元，一半用于合伙的出资，一半用于自己房屋的翻新改造。食品厂经营半年后，获纯利3万元，恰在此时，甲的房屋因一场大火烧毁，乙遂要求甲偿还借款，而甲已无其他财产可供清偿债务，对此下列做法错误的是：（）

A．甲可以用副食品厂获得的纯利3万元中自己应得的一份偿还乙的借款 

B．甲可以将自己的出资份额转让给乙，以抵销部分债务，但须经其他2人同意 

C．乙可以依法请求人民法院强制执行甲在副食品厂的财产份额用于清偿自己对甲的债权 

D．甲可以自己决定将自己的出资份额出质取得贷款，用于清偿乙的债务