下图表示利用某种农作物①和②两个品种分别培育出④、⑤、⑥三个品种的过程.根据上述过程

Sarah ran in, shouting, “Look what I found!”  Over the top of the paper I was reading; came a terrible thing that caused me to jump. It was a snake skin found in our garden.

“Isn’t it beautiful?” said my seven-year-old daughter.

I opened my eyes widely and looked at the snake skin in fear. I didn’t think it was beautiful, but I learned never to appear nonchalant(冷漠的)with children. Everything they see for the first time is important to their sense of beauty; they see only excellence in the world.

“Why does it do this?”  Sarah asked.

“Snakes shed(蜕) their skins because they need to renew themselves,”  I explained.

“Why do they need to renew themselves?” Sarah asked.

“We often need to shed our skins, those coatings that we cover ourselves with,” I said to my daughter. “We leave some things and find other thing unwanted or unnecessary. This snake no longer needs this skin. It is probably too little for him, and he probably doesn’t think he looks as smart in it as he once did. “

As we talked, I knew that she began to understand. Although she couldn’t understand clearly, she would know that renewal is part of progress; that we need to take a good look at ourselves, our rooms, schoolwork and spirit, and see what we need to keep and what we need to leave.  I was careful to tell that this is a natural way, not one to be forced.

“Snakes don’t peel off their skins when they like them. “I explained. “It happens as a natural thing of their growth. “

“I see, Dad,” said Sarah as she held the snake skin, and then ran off.

I hoped she would remember this; we need to throw some away because they are worthless or unnecessary. Then we can store them as memories m our deep hearts.

小题1:Father jumped up when her daughter came to him with a snake skin because ＿＿＿＿＿＿.

A．he didn’t want to read any more

B．he was in great fear of it

C．he wanted to praised her daughter

D．he hated snakes小题2:Father’s patient explanation shows that ＿＿＿＿＿＿.

A．his daughter didn’t want to listen to him at all

B．he knew children saw only excellence in the world

C．his daughter couldn’t follow him at all

D．he wanted to teach everything to her小题3:In this reading the underlined word ‘renew’ means ＿＿＿＿＿＿.

A．to begin to do something again

B．to make something newer than before

C．to replace something old with something new

D．to cover something old with something new小题4:We learn from the reading that＿＿＿＿＿＿.

A．the girl seemed to understand what her father said

B．the girl wasn’t interested in the explanation

C．the father was good at raising snakes

D．the father liked the snake skin better小题5:Which of the following titles is the best for the reading?

A．Snake Skin

B．Renew Ourselves

C．Father and Girl

D．Great Discovery

原发性肝癌最容易转移的部位是（）。

A.肝内

B.肺

C.左锁骨上淋巴结

D.骨

E.腹腔内种植

有下列四种物质：

（1）能发生消去反应生成具有相同碳原子数的烯烃的是    ，写出消去产物的结构简式：

（2）能被氧化生成具有相同碳原子数的醛或酮的是    ，写出氧化产物的结构简式： 

1，25-（OH）₂D₃生理功能是（）

A.促进钙磷经肠道吸收作用增强

B.抑制肾曲小管对麟的吸收，增进对钙的重吸收

C.抑制骨盐溶解，使血清钙含量降低

D.使7-脱氢胆固醇变为胆骨化醇

E.促进胆骨化醇转化为25-羟胆骨化醇

涉外收付款的具体内容包括：（）

A、以信用证、托收包含、汇款等结算方式办理的涉外收付款，包括银行卡项下的涉外收付款

B、通过境内银行对境外发出支付指令的涉外收付款，及从境外向境内银行发出支付指令的涉外收付款

C、通过记账方式办理对外援助的涉外收付款

D、与非货币黄金进出口相关的涉外收付款