题目内容

外界光线穿过那些结构到达视网膜。

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She()tostudyhard.(Filltheblankwithaproperword.)

A. have
B. has

WheredidMongoliansimportthebricktea?

A. IthastobeimportedfromsouthernpartofChina.
B. IthastobeimportedfromnorthernpartofChina.

WhatisChegee?

A. Itisabeverageoffermentedmare'smilk.
B. Itismare'smilk.
C. Itiscow'smilk.

1. Mongoliansplantteabythemselves。

A. 对
B. 错