读“世界经纬网示意图”，回答下列问题：
若A点某日昼夜平分，且时刻为14：00，在图中用“平行斜线”画出这一时刻夜半球的范围。
参考答案：画图略
We are pleased to place with you an order for the following items on the that ______ they will be supplied from current stock.
A. understanding B. understand C. position D. stock
HBV处于复制状态，有传染性的是
A．抗-HBeB．抗-HBsC．HBcAgD．HBsAgE．抗-HBc
