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【单选题】
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JPEG文件
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WAV文件
C.
MIDI文件
D.
mp3文件
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参考答案：
举一反三
【单选题】中药鉴定的主要任务是
A.
鉴定和考证中药的品种
B.
开发和保护中药资源
C.
鉴定中药的真伪优劣
D.
保护和开发中药资源
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【单选题】已知两点 A(2,0),B(0,4)则AB的中点坐标为
A.
（ -2,4）
B.
（ 2，-4）
C.
（ 1,2）
D.
（ 1，-2）
查看完整题目与答案
【单选题】已知空间两点A（4，a，-b），B（a，a，2），则向量 AB =（　　）
A.
（a-4，0，2+b）
B.
（4-a，0，-b-2）
C.
（0，a-4，2+b）
D.
（a-4，0，-b-2）
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【简答题】阅读理解。 Wei Hua had a busy day yesterday. She got up before 7 o'clock in the morning, and quickly washed her hands and face. She got to school early. She had a little rest after lunch, but worked hard i...
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【单选题】已知两点A（2，0），B（0，4），且∠1=∠2，则点C的坐标为 [     ]
A.
（2，0）
B.
（0，2）
C.
（1，0）
D.
（0，1）
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【简答题】阅读填空。 Americans usually eat three l a day. Breakfast usually comes before eight o'clock in the morning. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is 2 twelve and one o'cl...
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【单选题】People began to count down (倒数): ' _____' just before 12 o'clock on New Year' Eve. [     ]
A.
One, two, three...
B.
First, second, third...
C.
Ten, nine, eight...
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【简答题】阅读理解 Americans usually eat three meals a day. Breakfast usually comes before eight o'clock(点钟) in the morning. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is between(在……之间)...
查看完整题目与答案
【简答题】听短文填空。 A__ 1 __ usually eat three meals a day. B__ 2 __ usually c__ 3_ _ before eight o'clock in the m__ 4 __. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is between t__ 5 ...
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【单选题】已知两点A(0，－3)，B(4,0)，若点P是圆x 2 ＋y 2 －2y＝0上的动点，则△ABP面积的最小值为(　　)
A.
6
B.
C.
8
查看完整题目与答案
相关题目：
【单选题】中药鉴定的主要任务是
A.
鉴定和考证中药的品种
B.
开发和保护中药资源
C.
鉴定中药的真伪优劣
D.
保护和开发中药资源
查看完整题目与答案
【单选题】已知两点 A(2,0),B(0,4)则AB的中点坐标为
A.
（ -2,4）
B.
（ 2，-4）
C.
（ 1,2）
D.
（ 1，-2）
查看完整题目与答案
【单选题】已知空间两点A（4，a，-b），B（a，a，2），则向量 AB =（　　）
A.
（a-4，0，2+b）
B.
（4-a，0，-b-2）
C.
（0，a-4，2+b）
D.
（a-4，0，-b-2）
查看完整题目与答案
【简答题】阅读理解。 Wei Hua had a busy day yesterday. She got up before 7 o'clock in the morning, and quickly washed her hands and face. She got to school early. She had a little rest after lunch, but worked hard i...
查看完整题目与答案
【单选题】已知两点A（2，0），B（0，4），且∠1=∠2，则点C的坐标为 [     ]
A.
（2，0）
B.
（0，2）
C.
（1，0）
D.
（0，1）
查看完整题目与答案
【简答题】阅读填空。 Americans usually eat three l a day. Breakfast usually comes before eight o'clock in the morning. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is 2 twelve and one o'cl...
查看完整题目与答案
【单选题】People began to count down (倒数): ' _____' just before 12 o'clock on New Year' Eve. [     ]
A.
One, two, three...
B.
First, second, third...
C.
Ten, nine, eight...
查看完整题目与答案
【简答题】阅读理解 Americans usually eat three meals a day. Breakfast usually comes before eight o'clock(点钟) in the morning. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is between(在……之间)...
查看完整题目与答案
【简答题】听短文填空。 A__ 1 __ usually eat three meals a day. B__ 2 __ usually c__ 3_ _ before eight o'clock in the m__ 4 __. They usually have eggs, some meat, bread, fruit juice and coffee. Lunch is between t__ 5 ...
查看完整题目与答案
【单选题】已知两点A(0，－3)，B(4,0)，若点P是圆x 2 ＋y 2 －2y＝0上的动点，则△ABP面积的最小值为(　　)
A.
6
B.
C.
8
查看完整题目与答案
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