下列不属于软件调试技术的是______。A．强行排错法 B．集成测试法 C．回溯法

设N_A表示阿伏加德罗常数的值，下列叙述正确的是

A 1L 0.1 mol·L^-1的CH₃COONa溶液中CH₃COO^-的总数是0.1N_A

B 常温常压下，1.6g O₂和O₃混合气体中质子总数为0.8 N_A

C 一定条件下，2mol SO₂和 1mol O₂发生反应，转移的电子总数一定是4N_A

D 1L 0.1mol·L^-1的葡萄糖溶液中分子总数为0.1 N _A

One day I told Mr Wang,our math teacher,was ill.                                                                             61.________

I was worried about him and went to see him after the school.                               62.________

When I enter his room,he struggled up to welcome                                              63.________

me.I let him lay down again.Mr Wang looked pale.                                               64.________

I asked about his trouble.He said he was having                                                    65.________

a bad cold.Then he had a bad cough.After take some                                             66.________

medicine he was getting better.He asked me that we                                              67.________

liked the teacher who took place.When he heard                                                   68.________

everything was all right,I could see he was pleasing.                                             69.________

Finally I asked him don’t to worry about the work                                                70.________

and have a good rest.

关于小儿时期白细胞总数的特点，以下哪项是错误的

A．初生时为15～20×10 9/L

B．婴儿期10×10 9/L

C．3岁以后接近成人水平

D．生后1周时平均为12×10 9/L

E．以上都不是

下列安全是由操作风险引发的有（）。

A.中航油事件

B.雷曼兄弟倒闭

C.巴林银行破产

D.法国兴业银行破产

E.英格兰银行倒闭

8岁患儿，胸骨左缘第3、4肋间听到响亮而粗糙的收缩期杂音，应考虑为（ ）。

A．室间隔缺损

B．主动脉瓣狭窄

C．二尖瓣关闭不全

D．动脉导管未闭

E．肺动脉瓣狭窄