下列关于微生物营养物的叙述中，正确的是_刷题宝

题干

下列关于微生物营养物的叙述中，正确的是（）

A：凡是碳源都能提供能量

B：碳源物质不可能同时是氮源

C：无机氮源也能提供能量

D：除水以外的无机物只提供无机盐

上一题下一题 0.0难度选择题更新时间:2018-02-09 05:13:59

答案(点此获取答案解析）

C

同类题1

It was Sunday today. Tom with her two good friends are going to see his uncle . There are lots of apples trees on his uncle farm. But he is too busy to pick the apples in them. So Jim went to help him every year. The farm is no far from here. The children are all going there on bike . They think it's good for their healthy.

同类题2

森林能净化空气、调节气候的现象主要说明了环境对植物的影响．

同类题3

把下面的分数都化成分子是4且大小不变的分数。

$\frac{2}{13}$ = $\frac{4}{()}$ $\frac{1}{5}$ = $\frac{4}{()}$ $\frac{12}{30}$ = $\frac{4}{()}$

同类题4

请根据如图回答问题：

同类题5

He didn’t have__________money,but he had __________friends.

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