These children had a good time ____ (read) interesting books.
看拼音,写词语。
lián peng
qīng tíng
fǎng fú
bǎo zhàng
piān piān qǐ wǔ
āi āi jǐ jǐ
—Yes. They have so many fun things to share.
玉米的原产地是( )
眼球结构中,晶状体是有弹性的透明体,对光线具有折射作用.图中晶状体的标号是( )