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社会保障指按照国家建立社会保障体系的有关要求，施工企业必须为职工交纳的保险、保障费用，由养老保险费、（）和（）组成。
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举一反三
【简答题】The wide use of smart phones means we seldom write letters now, but a TV show, Letters Alive, is ____ ____(使......恢复) this old habit.
【简答题】⚠️ 注意填入答案符号表示要规范,字母的大小写
【单选题】Tom _______ his English book in the classroom last Friday.
A.
have forgotten
B.
forgot
C.
left
D.
was leaving
【简答题】It’s become part of the restaurant table setting: knife, fork, napkin and cell phone. Distracted (思想不集中的) dining is the new concern with customers constantly texting friends, uploading a Weibo photo o...
【简答题】⚠️⚠️字母的大小写
【单选题】Now smart phones ________ in many ways in our daily life.
A.
are used
B.
is used
C.
are using
D.
use
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