硅含量在1.0%以下时,对钢材的性能影响较大的是( )。
A.韧性
B.疲劳极限
C.塑性
D.抗氧化性
E.耐腐蚀性
参考答案:B,D,E
短文填空。
Tom and Fred are t l about the year 2050.
"What will the world be like in the year 2050?" asks Tom.
"I don't know,"says Fred. "What do you t 2 ?"
"Well, no one knows. But it is interesting to guess," says Tom. "In the year 2050 everyone will
c 3 a pocket computer. If we have problems, the computers will give us a 4 . And we can talk to
our friends all over the world. P 5 we will work only two or three days a week. We can f 6 to
the moon by spaceship and spend v 7 there. "
"I'm very glad to h 8 that. I h 9 to fly to the moon, and I also hope to 10 in the sea," says
Fred. "Won't that be very interesting? Just like a fish. "
某孕妇产前检查时发现有淋病性子宫颈炎。分娩后应对新生儿作何处理()
A.迅速将患儿放入无菌隔离室
B.1%硝酸银滴眼
C.给婴儿注射青霉素
D.给婴儿口服氟哌酸
E.0.01%洗必泰清洗婴儿皮肤