问题 计算题 用竖式计算,带*的要验算。(1)47÷9=(2)26÷3=(3)*257+169=(4)156+223=(5)126+178+122=(6)233+567+89= 答案 (1)47÷9=5……2(2)26÷3=8……2(3)*257+169=426(4)156+223=379 (5)126+178+122 =126+300 =426(6)233+567+89= =800+89 =889 选择题 —The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?—________ my students have a try?A.MayB.MustC.WillD.Shall 查看答案 单项选择题 取心部件包括:岩心筒、()、钢丝绳拉索和卡销。A、药盒B、岩心座C、钢垫D、橡胶垫 查看答案