用火焰原子吸收光谱法测定空气中的三氧化铬，以微孔滤膜采样，高氯酸-硝酸混合消解液消解

方程4^x-2^x+1=0的解为（    ）。

Charles Blackman: Alice in Wonderland

An Exhibition at the National Gallery of Victoria (NGV), Australia

10 June—12 August 2013

Venue(地点)   The lan Potter Centre

Admission     Free entry

Charles Blackman is famous for his beautiful painting of dreams. In 1956, he heard for the first time Lewis Carroll’s extraordinary tale of Alice in Wonderland—the story of a Victorian girl who falls down a rabbit hole, meets a lot of funny characters and experience all kinds of things. At that time, Blackman’s wife was suffering from progressive blindness. The story of Alice moving through the strange situations, often disheartened by various events, was similar to his wife’s experiences. It also reflected so much of his own life. All this contributed to the completion of the Alice in Wonderland paintings.

Illustrator Workshop

Go straight to the experts for an introductory course in book illustration(插图). The course includes an introduction to the process of illustration and its techniques, workshop exercises and group projects.

Dates  Sunday 17June & Sunday 5 Aug. 10 am—1 pm

Venue  Gas Works Arts Park

Wonderful World

Celebrate the exhibition and Children’s Book Week with special activities just for the day, including a special visit from Alice and the White Rabbit.

Date   Sunday 24 June, 11 am—4 pm

Venue  Exhibition Space. Level 3

Topsy-Turvy

Visit the exhibition or discover wonderful curiosities in artworks in the NGV Collection and make a magic world in a box. Alice and the White Rabbit will be with you. Walt Disney’s Alice in Wonderland will be screened.

Dates  Sunday 8,15,22,29 July, and Tuesday 24—Friday 27 July, 12 noon—3 pm

Venue  Theatre, NGV Australia

Drawing Workshop

Distortions of Scale(比例失真)can make artworks strange but interesting. Find out how Charles Blackman distorted scale in his paintings to create a curious world, then experiment with scale in your own drawings. More information upon booking.

Date   Friday 27 July, 10:30 am—3 pm

Venue  Foyer, Level 3

小题1:Charles Blackman’s paintings come from      .

A．his admiration for Lewis Carroll

B．his dream of becoming a famous artist

C．his wish to express his own feelings

D．his eagerness to cure his wife’s illness小题2:Which two activities can you participate in on the same day?

A．Illustrator workshop and Wonderful World.

B．Illustrator workshop and Drawing Workshop.

C．Wonderful World and Topsy-Turvy.

D．Topsy-Turvy and Drawing Workshop.小题3:To understand the Alice in Wonderland paintings, you should go to       .

A．Exhibition Space. Level 3

B．Gas Works Arts Park

C．Theatre, NGV Australia

D．Foyer, Level 3小题4:Activities concerning children’s books are to be held       .

A．on June 24

B．on July 15

C．on July 24

D．on August 5

伯、仲、叔醇的鉴别试验可选用（）。

A.硝酸铈试验

B.酰氯试验

C.高碘酸试验

D.卢卡斯试验

下图为我国山东丘陵某一苹果园等高线地形图（等高距为10米）。果农在收获苹果时发现，a处的苹果比b处的苹果平均果径大，但a处的苹果色泽没有b处光鲜、红润。据此回答下列问题。

a处苹果较大的主要原因是（）

A.光照条件好

B.昼夜温差大

C.水肥条件好

D.空气湿度大