题目

Now students’ English handwriting（书法） gets worse and worse. Their teachers worry about that. Is your English handwriting beautiful? If not, here are four steps that really work! ◆Use paper with lines Using paper with lines can keep you writing straight instead of up or down when you write English words or sentences. 【1】 Be sure to fill the lined space completely. And remember that those capital letters（大写字母） are written properly.◆Slow down If your writing is hard to read, try slowing down a little.【2】 If you write too fast, it’s hard for you to stop where yo下列离子方程式中正确的是 A．氢氧化铁溶于氢碘酸中：Fe(OH)3 + 3H+ = Fe3+ + 3H2O B．过量铁与稀HNO3反应：3Fe +4H+ + 2NO3－ = 3Fe2+ + 2NO↑+ 2H2O C．向Ca(ClO)2溶液中通入过量二氧化碳：ClO－+ H2O + CO2 = HClO + HCO3－ D．向次氯酸钙溶液中通入适量二氧化硫Ca2++2ClO－+SO2+H2O=CaSO3↓+2HClO