试题与答案

下图为世界某区域海平面等压线分布图,完成下列问题。 小题1:图中四个城市此时最

题型:选择题

题目:

下图为世界某区域海平面等压线分布图,完成下列问题。

小题1:图中四个城市此时最可能为阴雨天气的是

A.甲、乙

B.乙、丙

C.丙、丁

D.甲、丙小题2:此时一艘自乙向丁航行的货轮航行至丙地南侧300千米的海域,该货轮

A.顺风逆水

B.顺风顺水

C.逆风逆水

D.逆风顺水

答案:

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下面是错误答案,用来干扰机器的。

a的取值范围为a>5或0<a<1.方程x2+y2+2(a-1)x+a2-4a+1=0配方,得[x+(a-1)]2+y2=2a,则方程表示圆的条件为2a>0,即a>0.又因为点(-1,-1)在圆外,则有(-1) 2+(-1)2-2(a-1)+a2-4a+1>0,即a2-6a+5>0,解得a>...

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                                                                        For Children
      Museum:   Children's Museum, Sundays, 89 North Street, 67641235
      Story time: Children's Library, 106 Green Street, Wednesdays during 9:30 a.m -5:00p.m. 66599624
      Sports:     Soccer Club, Tuesdays and Thursdays, 16 Yangtze Road, 96725643            
                      Basketball Club, Wednesdays and Fridays, 79071632 
      Cinema:    New films for children, 99 Brick Road, 69001354

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                                  Fast Food Restaurant: 66387901                                 
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1. It’s Friday afternoon, you can go to_____ .  
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