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【单选题】
下列选项错误的一项是( )A.
开学在即 jí
B.
疾恶如仇 jí
C.
嫉妒 jì
D.
棘手 jí
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举一反三
【简答题】Samsung Electronics has launched a new foldable phone and several new 5G devices. Samsung announced the telephone and other products during an Tuesday in San Francisco, California. The new phone...
【简答题】电路如图所示, 电容 C 1 、 C 2 、 C 3 的电容量足够大 ,晶体管 VT为3DG4A型硅管,其β=20,r bb ’ =80Ω。试求:(1) 放大倍数A u 的表达式 ;( 2) 输入电阻 R i 的表达式 ;( 3) 输出电阻 R o 的表达式。
【多选题】Telephone tips If the phone rings and someone speaks in English, don’t be afraid to answer it! The fear of talking on the phone in a second language will disappear if you practice often. Here are a fe...
A.
Use business recordings
B.
Speak slowly and clearly
C.
Learn telephone manners
D.
Practice often with a friend
E.
Always be considerate of your friends
F.
Make sure you understand the other speaker
【简答题】What does the author intend to say by the example in the second paragraph? A) Some customers simply show no respect to those who serve them. B) People absorbed in a phone conversation tend to be absen...
【单选题】X62W铣床主轴电动机不能启动的可能原因有{.XZ}。
A.
(A)三相电源缺相
B.
(B)控制变压器无输出
C.
(C)速度继电器损坏
D.
(D)快速移动电磁铁损坏
【单选题】下列 IP 地址中,不正确的 IP 地址组是
A.
259.197.184.2 与 202.197.184.44
B.
127.0.0.1 与 192.168.0.21
C.
202.196.64.1 与 202.197.176.16
D.
255.255.255.0 与 10.10.3.1
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