以下哪项符合流感样病例咽试子采样对象的选择标准
D
暂无解析
—Howmanycomputers_____inyourclassroom?
—Therearetwo.
Ihaveapenfriend,andwealwayssende_____toeachotherbycomputer
don't(完全形式)__________
()____acat.
I’mtenyearsoldandmysisteristwoyearsolderthanme,sosheist_____yearsold。