提出申请后，失业保险受理需要多久？

根据短文内容及所给首字母,填写所缺单词,每空一词。

                                  Would you like to visit Beijing?

     Beijing is the c___1_____ of China.  It is an old c___2___ and there are

lots of places of i___3___ in Beijing. You know the emperors of Qing Dynasty

lived in the Palace M__4___.  You can walk s___5____ around the big lake

and feel the b___6___ of the old park in the Summer Palace. You can also drink

s___7__ Beijing tea in Laoshe Tea House. It is also a m___8____ city, you can

visit the big s____9____ in Wangfujing Street and you can travel to the World

Park by u___10____.

1.c__________2.c__________3.i__________4.M__________5.s__________

6.b__________7.s__________8.m_________9.s__________ 10.u__________

She likes potatoes, and I              potatoes,             .  [ ]

A. like, to        

B. like, too        

C. likes, to

良好的储油构造多属于[ ]

A、向斜

B、背斜

C、断层

D、盆地

植树工程中，（）的定点放线方法适用于范围大而地势平坦的绿地。

A、交会法

B、平板仪定点

C、网格法

D、断面法

关于关于重组PCR定点突变法叙述正确的是（）

A.增加镁离子浓度容易产生正向突变

B.第一轮PCR扩增的是不同DNA模版链

C.第二轮PCR扩增的是同一DNA模板链

D.第三轮PCR需要两种外侧寡核苷酸引物进行扩增

E.该方法产生的DNA片段需要经过测序来验证是否发生其他突变