题干
The teacher often asks us _______ English as _______ as possible.
A：to talk; much
B：to speak; much
C：talk; many
D：speak; many
答案(点此获取答案解析）
B
The teacher often asks us _______ English as _______ as possible.
A：to talk; much
B：to speak; much
C：talk; many
D：speak; many
CaO+CＯ2↑）．用水一泼就熟了〔CaO+H2O=Ca（OH）2〕，留下洁白在人间〔Ca（OH）2+CO2═CaCO3↓+H2Ｏ〕”下列对这首诗所描述的化学知识的说法中，错误的是（ ）