在肾脏全部不能被重吸收的物质是
A.水B.葡萄糖C.尿素D.肌酐
参考答案:D
解析: 在肾脏全部能被重吸收的物质是葡萄糖和氨基酸;在肾脏全部不能被重吸收的物质是肌酐。
关于结直肠癌下列说法错误的是()。
A.98%肛管以上的结直肠癌是腺癌
B.肛管水平大部分是鳞癌、基底细胞癌
C.大肠癌最常见于直肠、乙状结肠
D.右侧结肠癌较左侧更易发生狭窄和梗阻
E.出现梗阻、穿孔者预后较差
There and then he calculated what force from the earth would hold the moon, and compared it with the known force of gravity at tree height. The forces agreed; Newton says laconically, "I found the answer pretty nearly." Yet they agreed only nearly: the likeness and the approximation go together, for no likeness is exact. In Newton’s science modern science is full grown.