函数y=5x与y=-5x的图象( ) A.关于x轴对称 B.关于y对称 C.关于原点对

题型:选择题

问题:

函数y=5x与y=-5x的图象(  )
A.关于x轴对称B.关于y对称
C.关于原点对称D.关于直线y=x对称
考点:指数函数的图象与性质
题型:选择题

根据下列各句句意和空白之后的汉语提示词,在答题卡指定区域的横线上写出对应单词的正确形式,每空只写一词。

小题1:The teacher tells us the harder we work, the _____(幸福) we feel.

小题2:All things ______ (考虑), I think we ought to give the job to George.

小题3:Since no one is ______ (反对) it, we’ll adopt the proposal.

小题4:If only I had _______ (听) to your advice! But I didn’t.

小题5:It is dark and cold, so it is no good ______(等) here. Let’s go home.

小题6:My boss really _____(赏识)your talents, which impress him most.  

小题7:The children ______ (惊慌失措) when they realized they were lost.

小题8:According to a new plan, many _____ (妇女) teachers will be sent abroad.

小题9:As he has mastered several ______ (语言), many universities want to hire him.

小题10:She sings _____ (极其) well. So she is popular with young girls.

题型:选择题
把函数y=2sin2x的图象按向量
a
的方向平移,得到函数y=2sin(2x+
π
3
)+1
的图象,则向量
a
的坐标为______.
题型:选择题

烦热欲去衣被,胸腹温,尿清长,头晕咽干,面浮红如妆,下肢厥冷,舌淡脉弱。此证为()

A.寒热错杂

B.真热假寒

C.真寒假热

D.表里俱寒

E.表里俱热

题型:选择题

田坎是指耕地中()的地坎。

A.南方大于等于1m

B.北方大于等于2m

C.南方大于等于2m、北方大于等于1m

D.北方大于等于2m、南方大于等于1m

题型:选择题

下列引起血液性缺氧的病因是()

A.呼吸道狭窄

B.心力衰竭

C.氰化物中毒

D.脉动脉栓塞

E.亚硝酸盐中毒

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