人的双眼皮由显性基因B控制,单眼皮由隐性基因b控制.请回答下列问题: (1)小红

题型:解答题

问题:

人的双眼皮由显性基因B控制,单眼皮由隐性基因b控制.请回答下列问题:

(1)小红的父母都是双眼皮,小红却为单眼皮,则小红父母的基因型分别是______和______,小红的基因型是______.

(2)因为小红是个女孩,因此小红的母亲常受到小红父亲及其家人的责骂,他们认为不生男孩的责任全在小红母亲.你认为这种说法对吗?______.因为从性别决定方式看,生男生女主要取决于______的类型.

考点:基因的显性和隐性基因基因控制生物的性状
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如下关于家庭电路的说法中,正确的是(   )

A.家用电器都要串连接入电路

B.家用电器串联或并连接入电路都可以

C.我国家庭电路的电压是36伏

D.我国家庭电路电压是220伏

题型:解答题

阅读理解。

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项。

     I was ten when I first sat with my grandmother behind the cashier(收银台)in her general store.  

1.____ I quickly learned the importance of treating customers politely and saying "thank you. "

     At first I was paid in candy. 2.____    I worked every day after school,and during the summer and

on weekends and holidays from 8 am to 7 pm. My father helped me set up a bank account.    3.____

     By the time I was 12,my grandmother thought I had done such a good job that she promoted me to

selling cosmetics(化妆品) .  I developed the ability to look customers directly in the eye.  Even though

I was just a kid,women would ask me such things as "What color do you think I should wear?" I took

a real interest in their questions and was able to translate what they wanted into makeup (化妆) ideas. 

4.____

     The job taught me a valuable lesson: to be a successful salesperson,you didn't need to be a rocket

scientist-you needed to be a great listener.  5._____    Except they are no longer women purchasing

cosmetics from me;instead,they are kids who tell me which toys they would like to see designed and

developed. 

A. Later I received 50 cents an hour.

B. Before long,she let me sit there by myself.

C. I ended my selling a record amount of cosmetics.

D.  Today I still carry that lesson with me: I listen to customers.

E. My grandma's trust taught me how to handle responsibility.

F.  Soon I found myself looking more beautiful than ever before.

G. Watching my money grow was more rewarding than anything I could have bought.

题型:解答题

喉返神经麻痹的描述哪项是错误的()。

A.单侧不全麻痹可无明显声音改变

B.麻痹原因多为中枢性的

C.完全麻痹后声带固定于旁正中位

D.双侧麻痹时常有呼吸困难

E.左侧麻痹较右侧为多

题型:解答题

流水节拍一般取整数,必要时才保留()的小数值。

A.0.5

B.0.6

C.0.8

D.三者都可以

题型:解答题

比较线程和进程,下列说法有误的是( )。

A. i=1 j=2 m=3

B. m=3

C. i=3 j=2

D. m=1 i=1

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