制定《中华人民共和国民法通则》的目的，不正确的是（）。 A.为了保障公民、法人的合法

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       For many years, Hawaii has been a magic name to people who like to travel. People, both in Japan

and in America, dream of seeing this beautiful island in the middle of the Pacific Ocean. Their dreams

always include the sunset over the ocean. The sun drops like a ball of golden fire into the sear and it

drops so quickly that you can almost see it move. The sun leaves behind a glow that lights the skies

and shines in the quiet water.

       People often have a quiet, peaceful time while walking along the beach. The first strangers to these

islands centuries ago were Polynesian people who came from Tahiti in canoes .

       Now no matter where the people come from, they really want to see the original. beauty of Hawaii.

They want to see the lovely beaches and the mountain called Diamond Head which is almost hidden by

the tall hotels.

1. Hawaii is a name                  .

A. given by people who like to travel

B. attracting a lot of travelers          

C. with a magic story behind it

D. liked by both Japanese and American

2. On these beautiful islands every traveler will not want to miss                .

A. to swim in the quiet water

B. to see the tall hotels

C. to walk along the beach

D. to see the sunset

3. The best title of this passage is                 .

A. Islands

B. Hawaii, a Magic Name

C. Travelling in Hawaii

D. The Magic Beauty

下列说法正确的是（     ）．

A．²³⁵U的半衰期约为7亿年，随地球环境的变化，半衰期可能变短

B．原子核内部某个质子转变为中子时，放出β射线

C．在α、β、γ这三种射线中，γ射线的穿透能力最强，α射线的电离能力最强

D．氢原子的核外电子由较高能级跃迁到较低能级时，要释放一定频率的光子，同时电子的动能增加，电势能减少

晶体硼的基本结构单元都是由硼原子组成的正二十面体，其中含有20个等边三角形的面和一定数目的顶角，每个顶角各有一个硼原子，如图所示，请回答

(1)B-B键键角为______；   

(2)晶体硼中硼的原子个数为____；B—B键有______条。

寻常型银屑病组织病理改变主要是（）

A.角化不全

B.角化过度

C.角化不良

D.棘细胞变薄

E.颗粒层增厚

腹股沟管为腹前外侧壁肌之间的一条裂隙，位于（）的上方。男性有精索，女性有子宫圆韧带通过。