压力容器按承压方式分为内压容器和外压容器，内压容器按设计压力(P)可以划分为低压、中压、高压和超高压四个压力等级，有关四个压力等级范围的描述，错误的是______。
A．低压容器0.5MPa≤P＜1.6MPa
B．中压容器1.6MPa≤p＜10.0MPa
C．高压容器10.0MPa≤P＜100.0MPa
D．超高压容器P≥100.0MPa
参考答案：A
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| Meimei is a middle school student. She likes English very much. And she 1 it. She often tells her parents 2 her English study. Now she 3 her mother about her English study again. Meimei says, "Look, Mum, this is our new English book. There 4 a lot of interesting stories in it. ""Mm, not bad. Do you only 5 in class, or does your teacher explain(解释) everything to you in Chinese? " "Oh, no. We speak English for most of the time in class. Our teacher 6 us only in English. Sometimes 7 not easy for us to understand her, but she says that listening and speaking help us very much. " "I think she is right. Does she speak English very slowly? " "Not always. Sometimes we 8 . Then she says is again." "Is it interesting to study English? " "Yes, 9 . And I'm going to work harder at it in the new school year. I'm going to do my best(尽最大努力)." "That's good. I'm 10 you'll study better." | |||
| ( )1. A. good at ( )2. A. with ( )3. A. talks with ( )4. A. is ( )5. A. say English ( )6. A. speaks ( )7. A. we're ( )8. A. not understand her ( )9. A. it is ( )10.A. think | B. is good at B. to B. talks to B. are B. tell English B. speaks to B. they're B. don't understand her B. it do B. know | C. well in C. about C. is talking C. have C. talk English C. tells C. it's C. not understand him C. it isn't C. sure | D. is well in D. on D. is talking with D. has D. speak English D. tells to D. this is D. don't understand him D. it doesn't D. want |