四显示自动闭塞区段通过显示（）灯光的信号机限制速度为在前方第三架信号机前能停车的速度

When Mark first arrived in Thailand, he saw an old man selling something cheap in the street of Chiang Mai. The old man was one of the poor people in Chiang Mai and there was no difference from beggars (乞丐). Most of them were some lonely old people. Their life had no support.

Mark was a kind man, so he gave some changes to him without thinking. The old man told him to pick something he liked. Mark didn’t choose anything and left.

But the old man followed him closely. AT first, Mark didn’t think a lot, just supposing he wanted to go home. But when he went out very far saw the old man still following him, he was a bit tired, thinking the old man must feel he was kind and wanted to beg more money from him.

Mark turned back and told him not to follow him because he hadn’t much money. But the old man seemed not to understand what he meant, still following him. The bag on his back made him sweat (流汗) all over.

Mark happened to meet his Thai colleague (同事) in the street and his colleague heard this. The colleague turned to ask why the old man was following his friend.

The old man said out of breath, “My son, you gave me money, but didn’t want my things, so I have to give you something. I see you are a foreigner, likely not to familiar with here. I just want to follow you and show you the way. All I can do for you is this.”

Mark was shocked. He said he didn’t know why, when he felt the old man was just like his father.

小题1:What did Mark do when he first found the old man following him?

A．He didn’t think a lot and went on walking

B．He asked the old man why he was following him

C．He was shocked and asked his colleague to come.

D．He gave him more money without thinking.小题2:The old man followed Mark closely         .

A．because he wanted to go back home

B．because he wanted to sell more things to Mark

C．because he wanted to beg more money

D．because he wanted to show Mark the way小题3:Which of the following is true according to the passage?

A．Mark didn’t like this old man at all.

B．The old man was Mark’s father.

C．The old man sold something cheap to make a living.

D．Mark didn’t give the old man anything at the beginning.小题4:How did Mark feel about the old man at last?

A．He felt the old man was kind and warm.

B．He felt pity for the old man.

C．He felt angry with the old man

D．He felt doubt if the old man was a thief.

已知某双坡木基层屋面工程量为618m²，其中檐口方向长度为30.90m，采用规格为800mm×36mm×8mm×100根的灰板条，1200mm×25mm×25mm×50根的挂瓦条若增加2%的损耗量，则需要多少捆的灰板条和挂瓦条

为排除业务量因素的影响，在管理会计中，反映变动成本水平的指标一般是指（）。

A.变动成本总额

B.单位变动成本

C.变动成本的总额与单位额

D.变动成本率

物体在平衡力作用下的运动过程中，物体的机械能、动能、重力势能的关系可能是（　　）

A．机械能不变，动能也不变

B．动能不变，重力势能可变化

C．动能不变，重力势能一定变化

D．若势能变化，则机械能变化

2002年，我国医药制造业发展较为迅速，1至8月，医药制造业规模以上(全部国有企业及年销售收入500万元以上的非国有企业)工业总产值(不变价)为1873.26亿元，比去年同期增长20.01%；同期销售收入达到1384.92亿元，同比增长16.52%；利润为117.99亿元，同比增长24.46%。亏损企业951家，赢利企业2585家。

医药制造业包括中药材及中成药加工、化学药品原药、化学药品制剂、动物药品及生物制品业等五个小类行业。今年1至8月，化学药品原药制造业工业总产值增长率为 18.68%；化学药品制剂制造业工业总产值增长率为26.39%；中药材及中成药加工业工业总产值增长率为14.24%；动物药品制造业工业总产值增长率为27.90%；生物制品业工业总产值增长率为19.28%。

根据以上资料，我们可以看出，医药制造业中，（）工业总产值增长速度最快。

A．化学药品原药制造业

B．化学药品制剂制造业

C．中药材及中成药加工业

D．动物药品制造业