皮皮学，免费搜题
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【单选题】
鸡新城疫的潜伏期一般为( )天。A.
2
B.
3~5
C.
15
D.
30
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】如图为示波器面板,屏上显示的是一亮度很低,线条较粗且模糊不清的波形 . ( 1 )若要增大显示波形的亮度,应调节 _____ ( 2 )若要屏上波形线条变细且边缘清晰,应调节 _______ ( 3 )若要将波形曲线调至屏中央,应调节 _______ 与 ________ 旋钮。 2 、如图所示,图甲为示波器上的面板,图乙为一信号源 . ( 1 )若要观测此信号源发出的如图丙所示的正弦交流信号,应...
【简答题】A．K-K's mother had store. B．K-K and her mother have a lot of experience of doing business. C．K-K and her mother asked a lot of people for advice. D．K-K's mother didn't give her any help.
【单选题】某无黏性土样的颗粒分析见下表,则该土样为 粒径/mm 10 ~2 2 ~0.5 0.5 ~0.25 0.25 ~0.075 <0.075 相对含量/% 26 12 16 33 13
A.
角砾或圆砾
B.
砾砂
C.
粗砂
D.
中砂
【简答题】A．K-K's mother had a store. B．K-K and her mother had a lot of experience of doing business. C．K-K and her mother asked a lot of people for advice. D．K-K's mother didn't give her any help.
【单选题】下面( )项描述表明了医生的“需求”
A.
我昨晚做了一晚的手术，现在必须去睡觉了
B.
我一早看门诊，已经给30个患者进行了诊治，现在必须休息一会了
C.
我今天中午没有时间去吃饭了，你帮我买份麦当劳吧
D.
今晚我妈妈生日，我要请她老人家去酒店庆贺一下
E.
我要先去开个会
【简答题】经验, experience[ɪkˈspɪəriəns]
【简答题】A．He disagrees with the woman B．He has a lot of experience listening to others C．He can keep a secret D．He has several younger brothers and sisters
【简答题】经验, experience[ɪkˈspɪəriəns]
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