疱疹性咽峡炎的主要临床特点是（）

A.发热

B.头痛

C.咽部充血，出现疱疹

D.乏力

E.食欲差

Chinese currency RMB has been forced to raise its exchange rate to US dollar by nearly three percent in the

past few months. _____, some Chinese companies have stopped making any profit. [ ]

A. Deliberately

B. Constantly

C. Automatically

D. Consequently