应注意到弯曲半径过小，容易产生（）拉裂，弯曲半径过大，塑性变形不充分，容易产生较大回

根据句意、首字母或英语提示完成句中所缺的英语单词。

1. Lucy and Lily are twins, so they are s____________ in many ways.

2. My computer is broken. He is r______________ it for me.

3. The house is just as what she has i          . It's so beautiful.

4. If you want to know more information, you can visit our w         on the Internet.

5. The s          trained dogs can help the blind a lot.

6. All the children looked very          (please) after the          (pleasure) trip.

7. It's necessary to set up an organization to help          (disable) people.

8. Coach Blake spent the whole winter            (coach) his soccer team.

9. The poor child died of            ( hungry).

10. I tried to contact (联系) him but was            (able).

最常见的心脏肿瘤是（）

A.横纹肌瘤

B.畸胎瘤

C.黏液瘤

D.室壁瘤

E.心包囊肿

有以下程序 typedef struct{int b，p；}A； void f(A c)/* 注意：c是结构变量名 */ { int j； c.b+=1；c.p+=2； } main() { int i； A a={1，2}； f(a)； printf("%d，%d\n"，a.b，a.p)； } 程序运行后的输出结果是

A．2，3

B．2，4

C．1，4

D．1，2

自然伽马仪器的组合开关置直流挡时，传输到地面的测井信号是（）。

A、放射性脉冲

B、直流电平

C、正弦波

D、脉冲编码

产品最基本的层次，满足顾客需要的核心内容被称为（）。

A．核心利益 

B．有形产品 

C．附加产品 

D．潜在产品