皮皮学，免费搜题
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搜题
【判断题】
矢量图是由像素点来表达、构成图形的,可缩放性非常差。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】图为一皮带传动装置,右轮的半径为r,a是它边缘上的一点,左侧是一轮轴,大轮的半径是4r,小轮的半径为2r,b点在小轮上,到小轮中心的距离为r,c点和d点分别位于小轮和大轮的边缘上,若在传动过程中,皮带不打滑,则( )
A.
a点与b点的线速度大小相等
B.
a点与b点的角速度大小相等
C.
a点与c点的线速度大小相等
D.
a点与d点的向心加速度大小相等
【单选题】Look at the terms about language learning and the three classroom activities listed A, B and C. Two of the activities are examples of the term. One activity is NOT. Choose the letter (A, B or C) of th...
A.
The learners had to decide if certain verbs are followed by the gerund or the infinitive.
B.
The learners matched words to explanations of their meanings to complete an exercise.
C.
The learners ticked which word they heard in sets of minimal pairs.
【多选题】The network administrator must complete the connection between the RTA of the XYZ Company and the service provider. To accomplish this task, which two devices could be installed at the customer site t...
A.
WAN switch
B.
PVC
C.
ATM switch
D.
multiplexer
E.
CSU/DSU
F.
modem
【简答题】三极管基本放大电路输入电阻越 越好,输出电阻越 越好。(大/小)
【单选题】Look at the terms about language learning and the three classroom activities listed A, B and C. Two of the activities are examples of the term. One activity is NOT. Choose the letter (A, B or C) of th...
A.
The learner listened to a recording and wrote down the words he didn’t know.
B.
A learner discussed with his teacher why his answer was correct.
C.
A group of learners designed a poster together.
【单选题】Look at the terms about language learning and the three classroom activities listed A, B and C. Two of the activities are examples of the term. One activity is NOT. Choose the letter (A, B or C) of th...
A.
The learners completed a gapped text by reading the words around each gap.
B.
The learners listened to a recording and counted the stressed syllables in each word.
C.
The learners listened to short dialogues and deduced who the speakers were.
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