下列高原中有“世界屋脊”之称且海拔最高的是[ ]
A．青藏高原
B．蒙古高原
C．东非高原
D．帕米尔高原
答案：A
It was in New Zealand _____I was born _____Elizabeth first met Mr. Smith.
A． that , that
B．which , which
C．where , that
D．that, which
焊接接头
