关于主承托区的描述正确的是（） A.能承担咀嚼压力 B.包括上下颌后部牙槽嵴顶的区域

20世纪50年代发生在日本的水俣病，是有哪种环境污染造成的（　　）

A．酸雨

B．废旧电池

C．臭氧层破坏

D．温室效应增强

从方框中所给的词中选出最恰当的10个是，用其适当的形式填空。第个词只限用一次。（每小题1分）

Everyone loves a good mystery,. For thousands of years, Cretan mazes(克里特岛迷宫)have小题1:us. There are many different ideas about why they first appeared, and it’s run to tryand work one out! From the outside~ a Cretan maze looks like any other. There is only one path (路径) to follow, but it's 小题2:to get lost! The earliest example of  this type of maze is on a clay tablet (泥板) 小题3:___________ in Greece around 1200 BC. 小题4:__ ____,            the most famous was built on the island of Crete. The ancient Greeks 小题5:________ that there was a monster in the first Cretan maze. lt was half-man, half-bull, and liked to 6小题6:______humans, Every few years 7 boys and 7 girls  Make  call impossible legend though mystery confuse however into eat believe

cry were gent 小题7:________the maze , where the monster killed them. Eventually, a brave prince(王子) 小题8:______ Theseus killed the monster.  This is a good story. But it’s just a 小题9:____________Today, Cretan mazes are all over the world, and still seem 小题10:___________ Whether you believe the story or just admire them as pretty  works of art, enjoy the fun they bring!

体内不产生P450物质的人与产生P450物质的人比较，前者患帕金森氏综合症(一种影响脑部的疾病)的可能性三倍于后者。因为P450物质可保护脑部组织不受有毒化学物质的侵害。因此，有毒化学物质可能导致帕金森氏综合症。
下列哪项，如果为真，将最有力地支持以上论证

A．除了保护脑部不受有毒化学物质的侵害，P450对脑部无其他作用。

B．体内不能产生P450物质的人，也缺乏产生某些其他物质的能力。

C．一些帕金森氏综合症病人有自然产生P450的能力。

D．当用多巴胺——一种脑部自然产生的化学物质治疗帕金森氏综合症病人时，病人的症状减轻。

下列疾病中哪些不发生感染性休克（）

A.革兰阴性杆菌败血症

B.大叶性肺炎

C.暴发性流脑

D.霍乱

E.细菌性痢疾

钙质原料是（），硅、铝质原料是（），铁质原料是（）。