重吸收钠离子能力最强的部位是（）A.远曲小管 B.髓袢升支 C.髓袢降支 D.集合管

—John, I know nothing about playing tennis. I wonder if you could teach me.

—_____ Just name the day.[ ]

A. I’ m glad.

B. Go ahead.

C. If you want it.

D. With pleasure.

A．( Her parents’ unwillingness to pay her tuitioe

B．( Her desire to earn as much as possible

C．( The rising cost of living through inflation

D．( The fact that she is an overseas student

适当的磷素营养，能够使（）

A、光合产物较多地转化为碳水化合物，烟叶总糖量增加

B、光合产物较多地转化为含氮化合物，烟叶总氮量、总烟碱量和蛋白质含量增加

C、C/N适宜

D、调制后烟叶光泽黄亮，油润丰满

引起尿糖阳性的原因有（）

A.糖尿病

B.尿崩症

C.妊娠妇女

D.颅脑疾病

E.麻醉

肠结核最常见的发病部位是（）

A.空回肠

B.升结肠

C.横结肠

D.十二指肠

E.回盲部