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【单选题】
庖肉培养基属于A.
基础培养基
B.
营养培养基
C.
鉴别培养基
D.
选择培养基
E.
厌氧培养基
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反馈参考答案：
举一反三
【单选题】The city has an area of ________.
A.
1580 cubic kilometers
B.
1580 square meters
C.
1580 square kilometers
D.
1580 kilometers
【单选题】Panama lies between North and South America. It has an area of 77,000 square kilometers with a population of 1 ,771,000. Its official language is Spanish. Its capital is the largest city. Panama City....
A.
from the 16th century to the 18th century
B.
until 1903
C.
for about 200 years
D.
for 300 years and more
【单选题】Panama lies between North and South America. It has an area of 77,000 square kilometers with a population of 1,771,000. Its official language is Spanish. Its capital is the largest city. Panama City. ...
A.
from the 16th century to the 18th century
B.
until 1903
C.
for about 200 years
D.
for 300 years and more
【单选题】下列选项中,对关键词堆积描述不正确的是?(单选)( )
A.
在页面中堆砌关键词，会被搜索引擎除名
B.
关键词堆砌，不讲究合理分布，这样的网页对用户没有任何意义和价值
C.
在页面中堆砌关键词，不会被搜索引擎除名
D.
简单的修改网页标题，然后复制内容，在搜索引擎面前是很不讨喜的
【简答题】Melbourne is the second largest city in Australia, with a population of over 3.5 million.The city has an area of about 9 thousand square kilometers. It’s rare to find anyone who doesn’t love this city...
【多选题】解决压延制品中间高的问题，主要是从设备上着手，一般有：（ ）、（ ）和预应力。也可利用红外线向辊筒两端的塑料进行补偿加热，或是中间部分吹冷风来补偿处理。
A.
中高度
B.
轴交叉
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