皮皮学，免费搜题
登录
搜题
【单选题】
粘液-碳酸氢盐屏障是A.
主要由G细胞合成
B.
使胃酸分泌减少
C.
可激活胃蛋白酶原
D.
阻止胃粘膜细胞与胃蛋白酶及胃酸直接接触
E.
阻碍消化和吸收
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】In a recent study on the connection between brain abnormalities and violent behavior, the researcher examined more than three hundred people who had engaged in unusually violent behavior. toward frien...
A.
The incidence of brain abnormalities in the general population is as high as that in the group examined.
B.
The brain abnormalities discovered in those studied are of two distinct kinds.
C.
A wide variety of violent actions were exhibited by those studied.
D.
Those studied in the experiment acted violently toward strangers as well as toward people they knew.
E.
The study drew its subjects from a large geographical area.
【单选题】下列关于DNA和RNA的叙述,正确的是
A.
原核细胞内DNA的合成都需要DNA片段作为引物
B.
真核细胞内DNA和RNA的合成都在细胞核内完成
C.
肺炎双球菌转化实验证实了细胞内的DNA和RNA都是遗传物质
D.
原核细胞和真核细胞中基因表达出蛋白质都需要DNA和RNA的参与
【简答题】[A] strong and determined [B] rough and violent [C] difficult, demanding
【单选题】提高司法公信力需要优化司法职权配置,在( )设立巡回法庭,审理跨行政区域重大政和民事案件。
A.
最高人民法院
B.
高级人民法院
C.
中级人民法院
D.
基层人民法院
相关题目：
参考解析：
知识点：
题目纠错 0
发布
