长度相等的铜导线甲和乙，甲的横截面积大于乙的横截面积，则甲导线的电阻（16）乙导

Students go to colleges and universities to have valuable experiences and learn to live in their own. Go to college often means having the opportunity to meet with different peoples from different parts of the country. They learn to communicating and co-operate with each other. For most students, we guess, it is the first time that they had been away home. They are faced by many new situations and have to learn to solve them independently, making decisions on our own and dealing with various things themselves. So colleges and universities help with them grow up.

关于内脏蠕虫移行症病原学叙述，正确的是（）

A.人若食用了未煮熟的陆生或水生螺类可感染广州管圆线虫

B.犬钩口线虫幼虫可长期保持在肌肉组织中

C.海异尖线虫幼虫可发育为第四期幼虫，但不能发育为成虫

D.斯氏狸殖吸虫以成虫在体内各脏器间游走为主要特点

E.棘颚口线虫症状典型，游走明显

数据库DB、数据库系统DBS、数据库管理系统DBMS之间的关系是【 】。

A．DB包含DBS和DBMS

B．DBMS包含DB和DBS

C．DBS包含DB和DBMS

D．没有任何关系

可通过试验实测得到的指标有（）。

A.缩限

B.液限

C.塑限

D.塑性指数

因为液体的切变模量等于0，所以横波不能在液体中传播。