【单选题】___________, a car knocked him down.
A.
While crossing the street C. While the boy was crossing thestreet
B.
While crossed the street D. While crosses the street
【单选题】While crossing the mountain area, all the men carried guns lest they ______ by wild animals.
【单选题】关于SQLite3数据库的操作,下面说法不正确的是
A.
Context对象调用openOrCreateDatabase方法打开或者创建数据库
B.
SQLiteDatabase类的静态方法openOrCreateDatabase方法打开或者创建数据库
C.
Context对象closeDatabase方法关闭数据库
D.
SQLiteDatabase类的静态方法deleteDatabase方法删除数据库
【单选题】While crossing the primitive forest, they all had guns with them for protection for fear that they ______ by the wild animals.
【判断题】顾客毫无购买兴趣的情况下,推销人员可以采用诱导性策略来唤起顾客的潜在需求,诱导顾客产生购买欲望。
【单选题】在市场导入期采用低价格和低水平促销进入市场的策略属于 ( )