特应性皮炎又称为()
A．急性皮炎
B．慢性皮炎
C．异位性皮炎
D．变应反应性皮炎
参考答案：C
气举气源不可选用（）。
A.气井高压天然气
B.油井伴生气
C.空气
D.氮气
—Hello! May I speak to Alice?
—Sorry, she _____ Shanghai.
A．have gone to
B．has been to
C．has been in
D．has gone to
