A:途径①比途径②更好地体现绿色化学思想
B:反应③分解所得混合气体X是SO2和SO3
C:反应③中有三种元素化合价发生变化
D:Y可以是葡萄糖,利用此反应可以检验病人是否患有糖尿病
根据中文提示写出单词或词组,使句意完整、正确。 You should ____(注意)to your handwriting.Robots can make people____ (懒惰的).Let's work together to ____(保护)our would.You have a toothache. You should go to see a ____(牙科医生).My mother likes ____(种植)flowers in the garden.
Lucy _____ her kind mother and she often helps _____ sick kids in the hospital.
They ask ______advice ______computer problems.