80.對一個患有氣喘病的本態性高血壓病人首次投予降血壓藥物，下列何者最不適當？
(A) diuretics, e.g. thiazide
(B)夕-blockers, e.g. propranolol
(C) calcium channel blockers, e.g amlodipine
(D) ACE inhibitors, e.g. captopril