平静呼吸下屏气，常用于哪个部位的检查（）
A.手
B.下肢
C.前臂
D.心脏
E.躯干
参考答案：D
The number of foreign students attending Chinese universities _____ increasing steadily since 1997.[ ]
A. is
B. are
C. has been
D. have been
红枣直播建园时对播种有哪些要求？
