题目

As is known to all, oranges are _______ Vitamin C.        A. rich in                           B. poor with                C. short of                      D. good for 答案：A读下图，关于印度德干高原地势的叙述正确的是 [     ]A．南高北低 B．西高东低 C．东高西低 D．中间高、四周低