题目

— ________. — Good luck.A.I will go to Germany with my parents this summer holiday.B.I won the first prize in the chemistry competition last week.C.I am going to have an interview in that company this afternoon.D.I fell off the bicycle and hurt my leg on my way home yesterday. 答案：【答案】C【解析】句意：——今天下午我将在那个公司有个面试。——祝你好运。考查情景交际。I will go to Germany with my parents this summer holiday我将暑假和我父母去德国度假；I won the first prize in the chemistry competition last week上周化学竞赛我得了第一；I am going to have an interview in that company this afternoon今天下午5．草酸钙是不能被人体吸收的沉积物．菠菜、洋葱、竹笋中富含草酸（H2C2O4）、草酸钠（Na2C2O4）：豆腐中含有较多的钙盐，如硫酸钙．化学工作者证实了上述物质可以发生如下反应：Na2C2O4+CaSO4═R+CaC2O4↓，下列说法正确的是（　　）A．CaC2O4是一种氧化物B．Na2C2O4中碳元素的化合价为+3C．R的化学式是Na2SO4D．洋葱、菠菜等不宜与豆腐混合食用