问题
选择题
下表为某种培养基的配方，根据表格可以判断出
A．此培养基可以用来筛选生产纤维素酶的菌种
B．此培养基因原料来源广泛，可用于工业生产
C．此培养基可以用来筛选自生固氮菌
D．此培养基中含有微生物所必需的五类营养要素
答案
答案：A
搜题请搜索小程序“爱下问搜题”
下表为某种培养基的配方，根据表格可以判断出
A．此培养基可以用来筛选生产纤维素酶的菌种
B．此培养基因原料来源广泛，可用于工业生产
C．此培养基可以用来筛选自生固氮菌
D．此培养基中含有微生物所必需的五类营养要素
答案：A
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| Paris has a beautiful name, the City of 1 . Do you know 2 it means? Many beautiful buildings are lighted at 3 . The streets are very 4 . When you 5 in Paris, you needn't turn 6 your headlights (车灯) even after dark. Paris is full of life all day and all night. But this is not the 7 reason (原因) for its beautiful name. For hundreds of years, Paris has been the centre of science and art. 8 scientists and artists have come to 9 here. For this reason, people 10 it the City of Lights. | ||||
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