—John looks very ,do you think so?—Yes.He needs to eat more food.

题干

—John looks very ,do you think so?

—Yes.He needs to eat more food.

A：tall

B：heavy

C：fat

D：thin

上一题下一题 0.0难度选择题更新时间:2019-04-21 08:47:57

D

A	CH₃CH₃+ Cl₂ $\overset{光照}{\to}$ CH₃CH₂Cl + HCl CH₂=CH₂+ HCl $\overset{}{\to}$ CH₃CH₂Cl	均为取代反应
B	由油脂制肥皂由淀粉得到葡萄糖	均发生了水解反应
C	Cl₂+ 2Br‾ = 2Cl‾ + Br₂ Zn + Cu²⁺= Zn²⁺+ Cu	均为单质被还原的置换反应
D	2Na₂O₂+ 2H₂O = 4NaOH + O₂↑ Cl₂+ H₂O = HCl + HClO	均为水作还原剂的氧化还原反应