外汇交易可分为( )。A．跨期外汇交易 B．近期外汇交易 C．远期外汇交易 D．即

Bob was cutting a branch（树枝） off a tree in his garden. While he was sawing（锯）, another man passed in the street. He stopped and said, “ Excuse me, but if you continue (继续)to saw（锯） that branch like that, you will fall down with it.” He said this because Bob was sitting on the branch and cutting it at a place between himself and the trunk（树干） of the tree.

Bob said nothing. He thought, “ This is some foolish（愚笨的） person who has no work to do and goes about telling other people what to do and what not to do.”

The man continued on his way. Of course, after a few minutes. The branch fell and Bob fell with it.

“My God!” he cried. “That man knows the future!” and he ran after him to ask how long he was going to live. But the man had gone.

小题1:One day Bob was cutting a branch_______a tree in his garden.

A．on

B．in

C．at

D．off小题2:While Bob was sawing, another man_______.

A．told him to stop working 　

B．told him he would fall down

C．would borrow something from him 　

D．would help him saw that branch小题3:After hearing the man’s words, Bob thought that________.

A．that was a foolish person. 　

B．that was a wise person

C．that was a proud person

D．that fellow cheated him小题4:What happened to Bob after a few minutes?

A. The branch fell.             B. Bob fell down to the ground.

C. Bob was hurt himself. 　　          D. Both A and B.

小题5:This story is about ________.

A．a foolish man

B．a wise man

C．cutting a tree

D．that we need to take good advice

关于局麻药液加肾上腺素的问题，下列哪种说法是不对的（）

A.可延缓局麻药吸收，缩短起效时间

B.可加强阻滞效能，延长局麻药作用时间

C.可减轻局麻药毒性反应

D.局部麻醉中，局麻药液均应加入1：20万单位的肾上腺素

E.偶可引起病人面色苍白、烦躁不安、心悸等

下列表示物质结构的化学用语或模型图正确的是[ ]

A．HClO的结构式：H－O－Cl

B．H₂O₂的电子式：

C．CO₂的比例模型：

D．¹⁴C的原子结构示意图：

一般来说，由于（）引起的建设工程索赔，承包商很难列入利润。

A．文件有技术性错误

B．工程范围的变更

C．工程暂停

D．业主未能及时提供施工现场

利润是成本推进型通货膨胀发生的重要原因之一。