2～4岁儿童最常见的恶性肿瘤是（） A.婴儿型多囊肾 B.神经母细胞瘤 C.Wilm

糠油皂角中含叶绿素和叶黄素。

电力市场也像普通商品市场一样，生产者按照边际收益等于边际成本的利润最大化原则选择产量，为了占领市场，也存在着（）.

A.垄断和竞争

B.垄断

C.特性

D.竞争

补全对话。

Harry, Jordan and William are talking about something.

H: Hi, Jordan!     1   .

J: I'm looking at these things. What do you think of them?

H: Well…Hm...    2   . I think they're cool.

W: I don't like sunglasses. I love scarves.     3   .

H: Girls always like scarves.     4   .

J: What do you think of them?

H: Er…I like belt and wallet.     5   .

A. They're my favorite.

B. They're really cool.

C. What are you doing?

D. I can't stand them.

E. I love sunglasses.

患者咳嗽。查体：右上肺叩诊出现鼓音，并闻及支气管呼吸音和湿啰音。应首先考虑的是（）

A.肺炎

B.肺结核

C.肺水肿

D.肺癌

E.肺不张

痫病瘀阻脑络的治法为

A．涤痰熄风，开窍定痫
B．清热泻火，化痰通窍
C．活血化瘀，熄风通窍
D．活血化瘀，开窍醒脑
E．豁痰开窍，健脾化浊