选择化学杀虫剂的原则不包括（） A.高效 B.无毒或低毒 C.使用剂量小 D.易分解

One day, it was cloudy. An old man together with his grandson were waiting for the bus at the bus stop. Beside them stood a school boy with a umbrella in their hands. Before long,  it started raining and then it began raining hardly．The old man and his grandson began to run because the sudden rain. Seeing that,  the school boy hurried to help them, shouted to them, “Don't run, Grandpa, and you will fall down. Let's shared the umbrella together.”With these words,  he held the umbrella over the old man and the little boy. It was not long since the bus came and they get on the bus together.

在产品的约当产量为( )。

A．300件

B．200件

C．165件

D．110件

回顾课文。     

（一）太阳会发光，会发热，是个大火球。太阳的温度很高，表面温度有6000摄氏度，就是钢铁碰到它，也会变成气；中心温度估计是表面积温度的3000倍。  

1.请用“         ”画出比喻句．

2.这段话应用了                                          等方法说明太阳热的特点。  

（二）妈妈还教我发电子邮件。我试着给远在国外的表姐发了一个贺卡。站在一旁的妈妈对我说：“过去寄一封信，对方要好几天才能收到，多慢啊！现在发 一个电子邮件，对方几秒钟就能收到，真快啊！”妈妈说：“是呀，发电子邮件还能节约纸张、保护环境呢！”

3．这段话有                    句话，第3句话主要写                                                                                   

4．我读懂了发电子邮件的优点有                  、                  、                  。

有关2型糖尿病主要的病理生理特征正确的是（）

A.胰岛素抵抗和B细胞功能缺陷

B.胰岛素抵抗

C.胰岛素分泌缺陷

D.胰岛素抵抗早已存在，B细胞功能缺陷不能代偿时便会出现糖尿病

E.胰岛素抵抗和B细胞功能缺陷哪个是原发的改变目前尚未完全明了

将项目的组织独立于公司职能部门之外，由项目组织自己独立负责项目的组织管理模式是 ( )。

A．职能式
B．项目式
C．矩阵式
D．复合式