下列关于城市国有土地使用权出让规划控制的内容正确的是( )。 ①城市国有土地使用权

下列图示的实验操作中，正确的是

A．稀释浓硫酸

B．称取氯化钠

C．过滤

D．制取氧气

短文填空 先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词必须在答题卡标有题号的横线上完整写出。（本大题共6分，每格0.5分）

Who was Leonardo da Vinci? You may answer without t    小题1:    : “He is the painter of the Mona Lisa.” What e    小题2:  do you know about him? Da Vinci was more than just a great artist in history. He’s also f   小题3:     as a scientist and an inventor.

Leonardo da Vinci was b    小题4:   to a rich family in Florence, Italy, in 1452. From childhood, Leonardo was given a good e   小题5:     and he showed talent at painting. By the age of 26, da Vinci had already become a famous painter.

He designed many i    小题6:    machines. Da Vinci’s idea l  小题7:    to the modern tank(坦克). Though da Vinci never b    小题8:     many of the inventions he designed, some of the things he i    小题9:    in the late 1400s are in use today.

As a scientist, da Vinci was very interested in the h小题10:   body. He spent a whole year c 小题11: up dead bodies in hospitals to learn about human anatomy(解剖学). He made more than 200 d 小题12:   of bodies.

请据图回答下列问题：

（1）A中滴加碘液后变蓝的部位是[______]______，新植物体的幼体是[______]______，它是种子的主要部分．

（2）B中营养主要贮存在[______]______中，C中3、1、5分别由B中______（填数字序号和相应结构名称）发育而成．

（3）A，B的相同点是都有______（填2个结构）及供胚萌发的______；不同点是B没有______，营养物质贮存的位置不同．

室性心动过速有严重血流动力学障碍，首选（）。

A.利多卡因

B.体外同步电直流复律

C.维拉帕米

D.毛花苷C

E.苯妥英钠

什么油品的初馏点、干点？