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【单选题】
设 是三维实向量,则( ).A.
一定线性无关
B.
一定可由 线性表出
C.
一定线性相关
D.
一定线性无关
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举一反三
【简答题】T ask 1: Listen to the questions and choose the best answer to each of them. 04_Task 1.mp3:
【简答题】You __ _ wait as we’re very busy at the moment. 2 You __ _ run in here! 3 You __ _ pay to print. It’s 10 pence (便士) per sheet. 4 You __ _ download updates. The computer does it automatically. 5 Yo...
【简答题】I Extensive Listening Expo Registration Alice calls the Guangzhou International Exhibition Center. Listen to the call and decide whether the following statements are T(true) or F (false). u04p11.mp3: ...
【简答题】TCP/IP模型的层之间使用PDU （协议数据单元） 彼此交换信息， 传输层带TCP报头的PDU被称为 （ ） 。
【简答题】单句语法填空 1.He is so stubborn _______ most of us dislike him. 2.I opened the door and saw a man _______ (dress) in an old coat. 3.The young man is ________ (rely) so you can depend on him. 4.O...
【简答题】根据句意和所给字母完成单词。 1. We use the e to go up and down the building. 2. Look! It's raining outside. You'd better put on your raincoat or take an u . 3. If you want to know the answer to the question, you sh...
【单选题】Now you will hear a short conversations.Listen carefully and choose the best answer from the four possible choices. u04_2.1_1.mp3:
A.
The advertisements seen in many places.
B.
The use of Uncle Sam's image.
C.
The places Uncle Sam has been to.
D.
The men who joined the army.
【简答题】He caught a youth ___________ (break) into a car. 7. Don’t leave her____________(wait) outside in the rain. 8. Listen! I can hear him ____________(sing). 9. I often hear the song _____________(sing). ...
【简答题】Listen to a conversation and try to answer the following question. Which parts will take the most in the trip budget? 04花销预算.mp3:
【简答题】动词填空。 1. Li Lei isn't in. He _____ (wait) for his mother outside. 2. Now the boy like his parents _____ (not like) fast food at all. 3. The Greens _____ (plan) to go on holiday in Hawaii at present. ...
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