芹菜素是 A.黄酮类化合物 B.异黄酮类化合物 C.查耳酮类化合物 D.花色素类化合

题型:单项选择题

问题:

芹菜素是

A.黄酮类化合物
B.异黄酮类化合物
C.查耳酮类化合物
D.花色素类化合物
E.橙酮类化合物

考点:中药执业药师中药学专业知识(二)中药执业药师中药学专业知识(二)
题型:单项选择题

根据语境,用恰当的语言完成对话。

(after the graduation ceremony, Peng Lan and Liu Qiang are talking about their summer vacation plans at home.)

                                                 Peng Lan = P           Liu Qiang = L

P: Hey, Liu Qiang. Our junior high school life has come to an end. What are you going to do this summer

    vacation?

L: 1._____________________. The scenery there is very beautiful.

P: Sound great. It's considered as the Treasure Island of China. 2.______________________?

L: I'll go to Mount Ali, Sun Moon Lake and some other tourist attractions. And I want to see Tuantuan and

    Yuanyuan.

P: 3._____________________?

L: By ship. You know the policy is much better than before. People from the mainland can fly or take a ship

    there. I prefer to go there by ship.

P: 4._____________________. It's a little more slowly but interesting. Well, it's reported the farmers can sell

    their fruits to the mainland. It not only helps the farmersf earn money, but also makes a contribution to the

    communication between Taiwan and the mainland.

L: That's right. I hope our country can unite early.

P: Me, too. 5._______________________?

L: In half a month. My parents will go with me.

P: Well, don't forget to bring back some various delicious fruits from Taiwan.

L: Of course not.

题型:单项选择题

下列哪一神经不属于面神经

A.岩浅大神经

B.颊神经

C.鼓索

D.下颌缘支

E.颈支

题型:单项选择题

如图所示,电阻为r的矩形线圈在匀强磁场中绕垂直于磁场的轴以角速度ω匀速转动。t=0时刻线圈平面与磁场垂直,各电表均为理想交流电表,则

[ ]

A.t=0时刻线圈中的感应电动势最大

B.1s内电路中的电流方向改变ω/π次

C.滑片P下滑时,电压表的读数变大

D.开关K处于断开状态和闭合状态时,电流表的读数相同

题型:单项选择题

保存化工样品的样品标签,无需标注的内容是()。

A.样品名称

B.样品编号

C.样品批号

D.样品性能

题型:单项选择题

我们对待马克思主义既要坚持又要发展。这种态度的哲学基础是

A.认识是主体对客体的能动反映的原理

B.实践是认识的来源和目的的原理

C.感性认识有待于上升到理性认识的原理

D.真理的绝对性和相对性相统一的原理

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