Today is September 10th. It's ______ Day. Let's go and buy some flowers for our teachers.
A. Teachers'
B. Teacher's
C. teachers'
D. the Teachers'
—Are you sure Mr Bush is at home He might still be in his office. —Let's ring the ______.
A. voice
B. watch
C. answer
D. doorbell
—What would you like to drink, Jed and Jeff. —______, please.
A. Two cup of coffee
B. Two cups of coffee
C. Two cups of coffees
D. Two cup of coffees
关于妊娠期用药，不符合用药原则的是
A. 尽量联合用药
B. 权衡利弊，避免滥用抗菌药物
C. 疗效不确定的药物禁止应用
D. 宜选用疗效肯定的老药，避免应用对胎影响未肯定的新药
E. 确实需用对胎儿有危害的药物时，应先终止妊娠再用药
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