授精

题型:问答题 简答题

问题:

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考点:昆虫学昆虫学题库
题型:问答题 简答题

休克早期引起少尿的常见原因为()

A.血容量不足

B.儿茶酚胺分泌增加

C.肾灌注量不足

D.血管升压素增加

E.急性肾衰竭

题型:问答题 简答题

下列不符合噬血细胞综合征实验室特点的是()

A.血纤维蛋白原升高

B.血乳酸脱氢酶升高

C.血甘油三酯升高

D.血清铁蛋白升高

E.血清胆红素升高

题型:问答题 简答题

具有极强的流动性、普遍的可接受性、收支频繁、最容易发生意外和损失等特点的是 ______。

A.股票

B.银行存款

C.债券

D.库存现金

题型:问答题 简答题

About a week ago, when I was playing basketball at our local park, I noticed a small group of boys picking on a smaller, skinnier boy. They were (21) him names and even pushed him to the ground and kicked dirt in his face. (22) I saw that, I walked over to the group.
I stepped (23) them and the smaller boy, and asked them politely what this boy had done worthy of (24) they were doing to him. One of the boys replied, "He’s weird. " At that, I asked one of the boys if he thought his friend was weird, and the (25) was "No." So, I asked another boy what the word "weird" (26) , and he said, "Different." That was my cue (暗示). I told them that everyone is (27) , and that they all looked just as different to the other boy as he did to them. They all stood (28) for a moment, and then the most amazing thing happened. One of the boys helped the small boy off the ground and then said sorry to him. He (29) to let him play with them.
I thanked the boy for being so (30) As I looked around, I realized that there were dozens of other people at the park (31) no one else had stopped to help this boy. I felt happy that the boy was p enough to stand up against his friends to (32) someone in need, but I felt sad that (33) else had even taken a second look.
I hope that my action helped them (34) that they could have made a difference with a little (35) , and maybe next time they will be the ones who choose to help.

Ⅱ. 完形填空

/Close
通过下面短文,掌握其大意,然后再各题所给的四个选项(A、B、C和D)中选出一个最佳选项。

A.different

B.free

C.important

D.p

题型:问答题 简答题

在淡水养鱼,对雌鱼催情进行人工繁殖时,生产上常取鱼的某一腺体,将其研碎注射到同种鱼体内,该腺体是()

A.垂体

B.下丘脑

C.精巢

D.肾上腺

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