抗心律失常分为四大类,I类药阻断__________________;Ⅱ类药阻断__________________;Ⅲ类药阻断__________________;Ⅳ类药阻断__________________。
— I would like to make an appointment for the meeting. Which day would you prefer, Tuesday or Thursday?
— _________________
— ___________________
— Once or twice a week.
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