问题
填空题
某市为解决低收人群众住房难问题，预计在近五年内建成316万平方米的廉租房，数据316万用科学记数法表示并保留两个有效数字是（ ）。
答案
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某市为解决低收人群众住房难问题，预计在近五年内建成316万平方米的廉租房，数据316万用科学记数法表示并保留两个有效数字是（ ）。
| 阅读短文，选出正确的词填空。 | |
| This is Jenny's k . Look! Her mother is c ing eggs on the s . Jenny is h ing her mother m lunch. Jenny says, " Mum, I'm h ." Mum says, " Supper is r . Come here, please. At first (首先) w your hands. Your hands are too d ." After dinner (饭后), Jenny helps her mother wash the d . Her mother says, "Good w . Our kitchen is c .
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