苯二氮类药物对下列哪些递质无明显影响（）。 A.增强GABA的作用 B.增强乙酰胆碱

对于150户住宅建筑用电负荷需要系数为（）。

A.0.75

B.0.65

C.0.55

D.0.45

A middle-aged couple from California got to the Pacific Ocean after a 4,900- mile-cross-country walk, becoming the first to backpack the American Discovery Trail by walking．

Marcia and Ken started the travel across 13 states, through 14 national parks and 16 national forests from Delaware and finally reached their destination a day nearly eight months later.

“We are sad that a great adventure is over. Now we just go home and do housework” said the couple, who went through cities, desert, mountains and farmland before reaching the Pacific alone.

They overcame deep snow in the East, a quicksand in Utah, close lightning strikes in the Mid- west and strong desert sandstorms in the West while averaging 22 miles a day and taking only four days off．But they enjoyed the French history of St.Louis and the beauty of the Colorado Rockies.   They particularly remember kindness of strangers they met along the way.

“Americans are truly warm-hearted and wonderful. We got to meet people that we would never meet in our daily living at home. It' s an amazing country.” Marcia said．

小题1:Which of the following is the most suitable title?

A．The first couple to backpack the Pacific Ocean alone

B．The first couple to cover a 4,900 mile cross-country walk

C．A husband-and-wife team suffered a lot during an adventure

D．A husband-and-wife team got much help during an adventure小题2:Which of the statements is TRUE?

A．The couple travelled across 16 states.

B．Their walk lasted nearly half a year.

C．They prefer housework to adventure

D．They took four days off during the travel小题3:We know that during the walk, the couple_________.

A．were worried about their housework

B．once covered 22 miles within four days

C．were treated warm-heartedly by strangers

D．met strong desert sandstorms in the East小题4:Which place do you suppose can replace the underlined word “destination”?

A．Delaware

B．Colorado Rockies

C．California

D．Pacific Ocean

下面关于HTML语言说法错误的是（）

A.HTML的意思是“超文本标记语言”

B.HTML是用于编写网页的统一的语言规范

C.我们经常用记事本编写网页

D.网页的头标记是Head

制动状态时，链式手制动装置手制动轴链卷入量为（）。

A.0.5～1圈

B.0.5～2圈

C.1～2圈

D.1～3圈

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