可以用来治疗尿崩症的降血糖药是:
A.格列齐特
B.小剂量胰岛素
C.甲苯磺丁脲
D.氯磺丙脲
E.瑞格列奈
Directions: Choose the best answer from the four choices marked A, B, C and D.The mountains form a natural _________between the two countries.
A. prevention
B. obstruction
C. barrier
D. jam
They built a ten-foot high fence to _________the house against intruders.
A. assure
B. secure
C. insure
D. issue
Managers have learned to grapple with _________, artificial intelligence, computer-aided engineering and manufacturing.
A. joining
B. junction
C. networking
D. linking