Translate the following sentences into Chinese. 1.The dosage should be decreased gradually to the minimal effective level which may be as low as 100 mg daily. 2.When in doubt, which is not frequent, one will establish the diagnosis by laparotomy. 3.The disease, which may occur at any age, is most frequent in early adult life. 4.The blood flow may be increased by more rapid and vigorous heart action, which accelerates the movement of heat to the skin. 5.The heart is muscular organ which is divided into a right and left half by a muscular wall. 6.Several different clinical classifications exist, which vary only in details.