下列属于含磷复合肥料的是_刷题宝

题干

下列属于含磷复合肥料的是（）

A：NH₄NO₃

B：Ca（H₂PO₄）₂

C：KNO₃

D：（NH₄）₂HPO₄

上一题下一题 0.0难度选择题更新时间:2015-08-06 05:09:40

答案(点此获取答案解析）

D

同类题1

James has just arrived, but I didn't know he _______ until yesterday.

同类题2

已知函数f（x）=log₃

\frac{2 x^{2} + b x + c}{x^{2} + 1}

的值域为0，1，则b与c的和为____．

同类题3

Hello, everyone! I am your1 today. First, I'd like to 2 you something about London before we3London is a very big city of England. The people here are friendly. They are always 4 to tell visitors something about the city.

London is a busy place. People_5hard. They are very 6 all the time (一直). London is also a very beautiful city. It has a lot of parks and gardens (花园). When you are in London, you can7the British Museum. It can tell you a lot of 8stories. You may also visit9 place. It is the River Thames. It's long and wide. There are many boats on the river.

May you have a good10！We will get to London in two hours. Now let's have a guessing game.

同类题4

下列有关孟德尔豌豆杂交实验的叙述，错误的是（）

同类题5

已知二次函数y=ax²+bx+c（a≠0）的图象如图所示，给下以下结论：

①2a﹣b=0；

②9a+3b+c＜0；

③关于x的一元二次方程ax²+bx+c+3=0有两个相等实数根；

④8a+c＜0．

其中正确的个数是（）

小学学科试题库

初中学科试题库

高中学科试题库