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【单选题】
Which of the following is inappropriate in citing the statistics?A.
Joan's family has 5 children, 11 cats, 3 turtles, 15 gerbils, and 2 canaries.
B.
About half of the middle school students own a smart phone.
C.
Our research indicates that only 33% of people like purple cars.
D.
The class did well on its first exam, with a mean score of 89.5% and a standard deviation of 7.8%.
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【单选题】求过点(2,-3,0)且以n=(1,-2,3)为法线向量的平面的方程
A.
x+2y+3z-8=0
B.
x-2y+3z-8=0
C.
x-2y+3z-1=0
D.
-x+2y+3z-8=0
【简答题】Listen and judge. Listen to the five short conversations and tell whether the statements are true or false. Write T for true and F for false. 1. The freshman knows where his dorm is. ...
【简答题】Hi! Do you know the three children? They are in a happy family. Xiao Xue is a helpful girl. She is beautiful. She likes studying. She studies very hard. She gets up early and finishes her breakfast qu...
【简答题】Listen to the five short conversations and tell whether the statements are true or false. Write T for true and F for false. 1. The freshman knows where his dorm is. ( ) 2....
【简答题】Xiao Yu is _______ ______ (拍照)over there.
相关题目：
【单选题】求过点(2,-3,0)且以n=(1,-2,3)为法线向量的平面的方程
A.
x+2y+3z-8=0
B.
x-2y+3z-8=0
C.
x-2y+3z-1=0
D.
-x+2y+3z-8=0
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