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【简答题】
css中设置border的属性值为( )时,显示点线。
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】如图所示是某位同学在完成MOSFET共源放大电路所测得的波形。假设他使用CH1测量电路输入信号，使用CH2测量电路输出信号。【图片】
A.
放大电路在此频率处的电压增益模值约为22.8
B.
当前信号频率小于100Hz
C.
输出信号虽然有一定失真，但在许可范围之内。
D.
示波器设置合理，触发模式及相关设置参数选择恰当。
E.
输出信号与输入信号的相位差为180度。
F.
输出信号无失真
【简答题】I’m w about my lessons.
【单选题】.对于应急消防泵，（钢质海船入级规范）要求，其排量应不小于所需消防泵总排量的______且任何情况不得少于______m3/h。（） A. 25% 50 B. 40% 25 C. 25% 40 D. 40% 40
A.
A
B.
B
C.
C
D.
D
【单选题】-W: _____________ -M: I’m going to my sister's.
A.
How about going with me?
B.
Have you moved or something?
C.
Where are you living?
D.
Where are you heading?
【简答题】To Jim, Hi, Jim. I’m a Chinese girl .My English name is Betty. I’m a student. I live in Nanjing with my parents. Nanjing is a big city in China. I like playing table tennis and running. I like listeni...
【简答题】W: Good morning, I’m Sara Smith. M: ____1___ W: Well, Sara is my first name. My last name is Smith, s-m-i-t-h. ____2___ M: Thank you, Miss Smith. I’m Ben Brown. This is my name card. W: ____3___? M: I...
【单选题】M：Hi，My name is Ivan,and I’m from Russia.W: ----- ,Ivan. My name is Jane. I'm from Canada.
A.
Nice to meet you
B.
Thank you
C.
I think so
D.
You are right
【单选题】--I’m worried about my English. -- ______ harder ________ you will catch up with your classmates.
A.
Working; and
B.
To work; or
C.
Work; and
D.
Worked; or
【简答题】I’m afraid my last meeting w______(持续,继续) for a while.
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