问题 计算题 用你喜欢的方法算一算。(1)260÷4÷5(2)75×13+75×7(3)76÷4×16 答案 (1)原式=65÷5 =13(2)原式=75×(13+7) =1500(3)原式=19×16 =304 判断题 妊娠5周即可在B型超声检查时见到妊娠囊。 查看答案 选择题 With China's policy of reform and opening to the outside world, the city has had________growth in the number of international tourists over the past two decades.[ ]A. abstract B. solid C. fragile D. steady 查看答案