向课题组成员小赵和小李分别发E-mail，主题为“紧急通知”，具体内容为“本周二下午

下面句子是紊乱的，正确的顺序应该是_______________________________。

（1）八仙花在有些土壤中开蓝色的花，在另一些土壤中开粉色的花。

（2）比如海桐花，起初是黄色，受精后就变成白色了。

（3）还有些花，受精以后也会变色。

（4）我国有种樱草，在普通温度下花是红花，在30摄氏度的暗室里就变成白色了。．

（5）红锦带花受精后也会变白色。

根据句意及汉语提示，写出各单词的正确形式，每空填一词。

1. As soon as they ______ (到达) to the hotel, they held a meeting at once.

2. After Jim answered the phone, he rushed out of the house ______ (立即).

3. Kids ______ (低于) 5 years old can't play with this kind of toy.

4. The dresses ______ (本身) are made of common materials, but they sell well

    because of the famous designer.

5. He seldom ______ (回复) to the e-mails his friends send him.

抽屉面上下左右接合处不需要留出一定的空隙。( )

影响血液运行的因素有哪些？

光驱中，激光打在盘片上时会有（）被反射回来。

A.50%-60%

B.60%-70%

C.70%-80%

D.80%-90%