根据所给的首字母提示,完成短文。 Yesterday I visited the

题型:听力题

问题:

根据所给的首字母提示,完成短文。

Yesterday I visited the Baihai Zoo.I was s­­­­­­  小题1:   to find few people there.Zoos are very important places.They p  小题2:   homes for many endangered animals.They also help to educate the public about caring f  小题3:   them.If we don’t s  小题4:   our zoos, they won’t have e  小题5:   money to take care of so many fine animals.Therefore, people should go and visit the zoos m  小题6:   often to learn about animals and help to protect them better.

H  小题7:  , some people don’t think so.They think zoos are t  小题8:   places for animals to live.“I’ve visited a lot of zoos in my life, and I have never seen o  小题9:    I liked or one that was suitable for animals to live in.” Jenny said.‘The animals are k   小题10:    in small cages and can hardly move at all.What’s more, they are only given food once a week.That’s terrible.”

考点:物主代词单词、词组
题型:听力题
已知直线的方向向量为及定点,动点满足,
MN
+
MF
=2
MG
MG
•(
MN
-
MF
)=0
,其中点N在直线l上.
(1)求动点M的轨迹C的方程;
(2)设A、B是轨迹C上异于原点O的两个不同动点,直线OA和OB的倾斜角分别为α和β,若α+β=θ为定值(0<θ<π),试问直线AB是否恒过定点,若AB恒过定点,请求出该定点的坐标,若AB不恒过定点,请说明理由.
题型:听力题

以下关于磷酸锌粘固剂的描述中错误的是( )。

A.粉剂中主要是氧化锌

B.温度高时凝固快

C.可溶于唾液

D.牙髓刺激较大

E.凝固后体积膨胀

题型:听力题

何谓治风剂?

题型:听力题

能够舒张肾血管,增加肾血流量,可治疗急性肾功能衰竭的药物是

A.肾上腺素
B.去甲肾上腺素
C.异丙肾上腺素
D.多巴胺
E.间羟胺

题型:听力题

()都是工业炸药感度之一。

A、爆轰感度

B、殉爆感度

C、静电感度

D、储藏感度

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