仔猪副伤寒是猪的一种肠道传染病，其病变特点为( )。A．大肠黏

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问题单项选择题

仔猪副伤寒是猪的一种肠道传染病，其病变特点为( )。

A．大肠黏膜发生卡他性、出血性或纤维素性坏死性炎症

B．胃和十二指肠黏膜发生急性卡他性炎症

C．肠系膜水肿和大肠黏膜发生纽扣状溃疡

D．肝、脾、淋巴结肿大、坏死

E．以上均是

答案

参考答案：A

填空题

用括号中所给单词的正确形式填空，完成句子。

1. Would you mind______(open) the door?

2. He____(like) playing football.

3. Mr Wang tells us not_____(smoke) in the room.

4. Look! The teacher____(swim) now.

5. May I______(listen) to music this afternoon?

6. The doctor asked me ______(drink) more water.

7. It takes me thirty minutes_______ (get) to the shop.

8. We ______ (visit) our aunt last week.

9. Do you enjoy ______ (walk) after supper?

10. We're going to _______ (grow) some flowers in the garden.

多项选择题

纳税人销售其自采稀土原矿的，可采用以下（）方法，将原矿销售额换算为精矿销售额计算缴纳资源税。

A.成本法

B.市场法

C.参照法

D.比较法