2比3比1溶液
A. 1/2张
B. 1/3张
C. 1/4张
D. 2/3张
E. 等张
A firm has net cash sales of $3500, earnings after taxes (EAT) of $1000, depreciation expense of $500, cost of goods sold (COGS) of $1500, and cash taxes of $ 500. Also, inventory decreased by $100, and accounts receivable increased by $300. What is the firm’s cash flow from operations()
A. $1200.
B. $1800.
C. $1300.
What will he bring to school tomorrow
A. He will bring a photo to school.
B. He will bring a friend to school.
C. He will bring a potato to school.
30岁,女性,6年前和两年前分别足月顺产一男孩和一女孩,4个月前有一次宫外孕手术,前来咨询避孕措施。 服用一年半后要求停用,为避免月经失调,应该做何处理
A. 服最后一次药后,加服炔雌醇至下次月经前
B. 服最后一次药后,月经周期口服甲孕酮至来月经
C. 服最后一次药后,加服孕激素至下次月经前
D. 服最后一次药后来月经的第5天开始口服短效避孕药,连服3个月
E. 停药后观察,出现症状对症治疗