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【单选题】
极粘土(粘土)气胎碾 强度极限为 ( )。
A.
0.3~0.4 0
B.
0.4~0.6 0
C.
0.6~0.8 0
D.
0.8~1.0 0
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【简答题】阅读理解。 I'm Mary. I'm from America. I'm twelve years old. I'm a middle school student. I learn man y subjects at school. They are Chinese, Math, English, P.E, Music, History, Geography, Biology and Art....
【简答题】My name is Anna. I am 13 years old. I am a student 1 Grade 7. I like to play tennis and I 2 to school every day. I am strong and have 3 of hobbies. I think I need about 2,100 calories every day. 4 bre...
【单选题】B My name is Tom Mallory. I'm English and I'm 13. I'm a student in Brookes School. I like music and sports very much. I can play twoinstruments :the violin and the piano. I can play them very well. I ...
A.
Ireland
B.
England
C.
Canada
D.
America
【单选题】使用紫外线照射消毒,关灯后再次使用前需间隔的时间是
A.
15min
B.
3~4min
C.
20min
D.
30min
E.
9~10min
【单选题】I like my school and get on well my classmates.
A.
with
B.
on
C.
in
【单选题】0601 在2πi处的留数为( ).
A.
0
B.
3
C.
-3
D.
4
【判断题】自然界中微生物污染食品的主要途径是内源性污染。
A.
正确
B.
错误
【简答题】E Hello, boys and girls. My name is Peter Miller. I’m 13 years old. I’m in Yuying Middle School now. I like music very much. I can sing and dance. I go to the singing lessons(课) and dancing lessons ev...
【单选题】使用紫外线照射消毒,关灯后再使用前需要间隔()
A.
1~2min
B.
3~4min
C.
5~6min
D.
7~8min
E.
9~1Omin
【多选题】食品中的微生物污染主要为 。
A.
酵母
B.
细菌和细菌毒素
C.
霉菌和霉菌毒素
D.
病毒
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