未知题型
Please pass me the dictionary whose cover is black．
使君子过量可导致头晕、呃逆、呕吐（ ）
未知题型使君子过量可导致头晕、呃逆、呕吐（ ）
Si中掺杂磷的电离过程称为施主电离。
未知题型Si中掺杂磷的电离过程称为施主电离。
— It is very cold these dys.— ______.So is it B．So it i...
单项选择题— It is very cold these dys.— ______.So is it B．So it is C．It so is D．Is it so— It is very cold these dys. — ______.So is it B．So it is C．It so is D．Is it so
