超声见胆囊壁上大小约3mm的稍强回声光团，无声影，无移动，如图所示，考虑为（） A.

If you look at the word Christmas, you can see the word Christ in it. On Christmas, people celebrate (庆祝) the birthday of Jesus Christ.

Of course (当然) not everyone in America thinks Christ a great man, but Christmas is a holiday for all the people. It’s on December 25. Shops and schools are not open. Almost (几乎) every family has a Christmas tree in the house. People make their Christmas trees very beautiful. They put many colored bulbs on the trees. The bulbs make the trees more beautiful at night. They also put some dolls, balls and small animals on the trees. On Christmas day almost everyone gives gifts to others and also gets gifts from others.

小题1:The word Christmas comes from          .

A．the name of a holiday

B．the name of a tree

C．the man of a man

D．the name of some presents小题2:In America people celebrate Christmas because          .

A．it is a holiday

B．Jesus Christ died

C．shops and schools are not open

D．they can get gifts小题3:People have Christmas trees in their houses          .

A．to put some small things on them

B．to make their houses beautiful

C．because they like trees

D．because shops will not open小题4:The word “bulb”means something that _________.

A．can give us light

B．children can play with

C．people can eat

D．can make people sleep well at night小题5:On Christmas,  __________.

A．parents give gifts to children

B．boys give gifts to girls or boys

C．students give gifts to their teachers

D．almost everyone gives gifts to others and also gets gifts from others

土地不会毁损，投资者在其上所拥有的权益通常在( )年以上。

A．20

B．30

C．70

D．40

农药和其他药品应分别放入专门的柜子里，避免儿童接触。

八卦中的离、艮、兑象征着自然事物和现象：（）

A.泽、雷、山

B.天、地、山

C.天、地、风

D.火、山、泽

锅炉升温升压过程中，对于中低压锅炉，汽包上下壁温差应控制在（）℃以下。

A、50

B、60

C、70