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【简答题】
Peter was walking back home from school, thought about the 1. class today. It was about giving the first aid. Suddenly he saw 2. a young girl lay on the ground. She seemed to be asleep but Peter 3. saw that her face was very pale. He walked up to the girl and call 4. softly,“Miss, Miss.” She moved slightly and gave no clear response .5. He put her hand under her nose. Yes, she was even breathing . Then he 6. suddenly saw that it was a wound on her left leg and blood was flowing 7. out. She might have hit by a car. He dialled 120 and called an ambulance 8. while waited for it, then he put the girl in the recovery position by 9. roll her onto one side and placing her left upper arm under her chin. 10.
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【单选题】下列哪一个正则表达式关于匹配邮箱的是正确的?
A.
/^[a-z\d_-]+@[a-z\d]+.[a-z]{2,3}$
B.
/^[a-z\D_-]+W[a-z\d]+.[a-z]{2,3}$
C.
/^[a-z\d_-]+@[a-z\D]+.[a-z]{2,3}$
D.
/^[a-z\d_-]+W[a-z\d]+.[a-z]{2,3}$
【单选题】以下代码生成"Hello"的对象的数目是: String s1 = "Hello"; String s2 = "Hello"; String s3 = "Hel" + "lo"; String s4 = "Hel" + new String("lo"); String s5 = new String("Hello"); String s6 = s5.intern(); String s7 = "H...
A.
9个
B.
4个
C.
5个
D.
6个
【简答题】关于计算机维护的注意事项中不包括______。
【单选题】下面程序段的运行结果是( ). String s1= "hello"; String s2= "hello"; String s3=new String("hello"); System.out.println(s1==s2); System.out.println(s1==s3);
A.
true true
B.
true false
C.
false true
D.
false false
【单选题】下列关于公称压力的说法，不正确的是（ ）。
A.
由字母PN和后跟无因次的数字组成
B.
与管道的力学性能和尺寸特性有关
C.
用来衡量管道的承压能力的标识
D.
就是管道的最高允许工作压力
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