(文科)已知直线l:xa+yb=1(a>0,b>0)经过点A(1,9),则a+b

题型:填空题

问题:

(文科)已知直线l:
x
a
+
y
b
=1(a>0,b>0)
经过点A(1,9),则a+b的最小值是______.
考点:基本不等式及其应用
题型:填空题

补全对话。

B= Barry

T= Taylor

B: Morning!You are back.How was your trip to China?

T: (1)S_____! We visited a high school called Lian Tang No.1 Middle School, in Nanchang County,

    Jiangxi (2)P_____

B: Tell me some details!How is the campus like?

T: Well, as its name suggests, lotus and lotus related culture are the theme of the campus. A lake with

    beautiful lotus perches amid the campus. You can see (3)v_____ of flowers and trees everywhere.

    The (4)s_____ are really beautiful.

B: I see! Then how about the students there?

T: In fact, communication with the students there is an important part of our visit. As I know, a majority

    of the students are (5)o_____ about their future. They firmly believe they can achieve a bright future.

    Under their educational system, college entrance examination is (6)v_____ to high school students, which

    determines the college they can enter. Thus everyone is trying their best to (7)a_____ knowledge hoping

    to do a good job in the examination.

B: Yes! I have always heard that Chinese students are pretty diligent.

T: Exactly! However, sometimes, some students also feel the (8)p_____ of the study.

B: I can understand. After all, study is not an easy task. So how are the teachers there?

T: As I could see, they are responsible. Although they are very (9)s_____ with the students in their study, 

    they actually treat them as friends.

B: It seems that you have a really good (10)i_____ on the school, hah?

T: That's true.

题型:填空题

(),中英关于香港问题联合声明的签署,标志着“一国两制”构想开始实施。

A.1982年9月

B.1982年12月

C.1984年9月

D.1984年12月

题型:填空题

采取血清学检查方法诊断的真菌感染是()

A.白假丝酵母菌

B.荚膜组织胞浆菌

C.申克孢子丝菌

D.新生隐球菌

E.曲霉

题型:填空题

哈勃星系分类法将星系分为了哪几类()?

A、椭圆星系,旋涡星系,折线星系

B、方形星系,旋涡星系,棒旋星系

C、椭圆星系,折线星系,棒旋星系

D、椭圆星系,旋涡星系,棒旋星系

题型:填空题

以新颖、独特的方式来解决问题的思维是______。

A.分析思维 B.直觉思维
C.再造性思维 D.创造性思维

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