- A.(<img src="//img1.yqda.net/question-name/49/be4990564bf05655a7cb41490a043c.png" width="16" height="42"/>,<img src="//img1.yqda.net/question-name/8c/962cb5a8aef168fb3abea9c0892c1c.png" width="16" height="42"/>)
 - B.(5,-1)
 - C.(2,3)
 - D.(5,1)
 
- A.y=sin(4x+<img src="//img1.yqda.net/question-name/c0/bf34f8d58cfa240783992f3995f20a.png" width="26" height="42"/>)
 - B.y=sin(4x+<img src="//img1.yqda.net/question-name/22/3bcac829045e507433590501e03254.png" width="18" height="42"/>)
 - C.y=sin4x
 - D.y=sinx
 
- A.k<0
 - B.9<k<15
 - C.16<k<25
 - D.k>0
 
- A.8
 - B.9
 - C.10
 - D.12
 
- 16
 - 
									
函数
的奇偶性分别是() 
- A.奇函数,奇函数
 - B.奇函数,偶函数
 - C.偶函数,偶函数
 - D.偶函数,奇函数
 
- A.{0}
 - B.{(x,y)|y<sup>2</sup>=-x<sup>2</sup>,x∈R,y∈R}
 - C.{x||x|=5}
 - D.{x|2x<sup>2</sup>-3x+2=0}
 
- A.15°
 - B.20°
 - C.30°
 - D.40°
 
- A.等腰三角形
 - B.钝角三角形
 - C.直角三角形
 - D.锐角三角形
 
- A.24
 - B.48
 - C.60
 - D.120
 
- A.0<a<<img src="//img1.yqda.net/question-name/7b/9ba089bb19a9fbc8084298ffe91784.png" width="16" height="42"/>
 - B.a><img src="//img1.yqda.net/question-name/c4/08fbcc25b5444864b2769771824e4b.png" width="16" height="42"/>
 - C.<img src="//img1.yqda.net/question-name/45/cffeeeee611bea1ee61e368fb41bfa.png" width="16" height="42"/><a<1
 - D.0<a<<img src="//img1.yqda.net/question-name/93/df94ed5657fd1e03e96f2c04ee921b.png" width="16" height="42"/>或a>1
 
- 22
 - 
									
() 
- A.(a-b)<sup>2</sup>
 - B.(a+b)<sup>2</sup>
 - C.a<sup>2</sup>-b<sup>2</sup>
 - D.a<sup>2</sup>+b<sup>2</sup>
 
- A.2
 - B.<img src="//img1.yqda.net/question-name/08/180ea9ee92378872986feec1ae6c99.png" width="34" height="23"/>
 - C.4
 - D.5
 
- A.40
 - B.141
 - C.277
 - D.1890
 
- A.3y+2x-18=0
 - B.2y+3x-18-0
 - C.3y-2x-18=0
 - D.2y-3x-18=0
 
- A.3
 - B.-3
 - C.4
 - D.-4
 
- A.<img src="//img1.yqda.net/question-name/f4/1d92d7a5d8740bbc48759bc9859f06.png" width="72" height="42"/>
 - B.<img src="//img1.yqda.net/question-name/cc/b5b51e07e523389059cd34cc5f992c.png" width="60" height="42"/>
 - C.<img src="//img1.yqda.net/question-name/1e/4eb964d31764577dd9c44667bfade7.png" width="60" height="42"/>
 - D.<img src="//img1.yqda.net/question-name/d1/c3e53eb368b3b0de50b89c2d227727.png" width="72" height="42"/>
 
- 28
 - 
									
不等式
的解集是() 
- A.{x|5<x<16}
 - B.{x|6<x<18}
 - C.{x|7<x<20}
 - D.{x|8<x<22}
 
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