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【单选题】

The desk must__once a day.

A.
clean
B.
cleaned
C.
cleans
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【单选题】母猪全部生产后，多久开始排出胎衣？ (After the sow is fully born, how long does it take to start discharging the tire coat?)
A.
10-30min
B.
20-40min 
C.
 30-50min
D.
40-60min
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【判断题】母猪乳房有光泽，乳头有较多的乳汁排出，2天内分娩。 (The sow's breast is shiny, the nipple has more milk discharge, and it is delivered within 2 days.)
A.
正确
B.
错误
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【判断题】仔猪吃初乳之前头把初乳挤掉，再喂仔猪吃。 (Before the piglet eats the colostrum, the head is squeezed off, and then fed to the piglet.)
A.
正确
B.
错误
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【判断题】羊水破后，1小时分娩开始。 (After the amniotic fluid is broken, the childbirth begins in 1 hour.)
A.
正确
B.
错误
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【判断题】母猪分娩前，可以用0.1%的高锰酸钾溶液给猪体消毒。 (Before sowing, the pig can be disinfected with 0.1% potassium permanganate solution.)
A.
正确
B.
错误
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【判断题】无心跳无呼吸，但脉搏有跳动，判定为假死猪。 (No heartbeat and no breathing, but the pulse beats, which is judged to be a fake dead pig.)
A.
正确
B.
错误
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【单选题】牛无( )。
A.
切齿
B.
切齿和犬齿
C.
犬齿和臼齿
D.
上切齿和犬齿
E.
下切齿
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【单选题】Listen to the text and decide which of the following best states the speaker's purpose of his speech.
A.
To argue that the nation should be ready for a war of resistance against Britain.
B.
To dispute the argument presented in the speeches of previous speakers.
C.
To call upon the house to abandon slavery.
D.
To cherish infinite faith in God who presides over the destinies of the nations.
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【单选题】断奶仔猪适宜温度在多少度？ （What is the appropriate temperature for weaning piglets?）
A.
20℃
B.
22℃
C.
24℃
D.
26℃
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【单选题】中圈饲养中多少头仔猪配一个饮水器？ （How many piglets are equipped with a water dispenser in the middle circle?）
A.
5头（ 5 heads ）
B.
10头（10 heads）
C.
 15头（15 heads ）
D.
 20头（20 heads）
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