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水生植物和湿生植物的储水组织非常发达。( )

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Over a third of the population in that African country was estimated to have no__________

A. excess
B. SucCess
C. process
D. access

叶绿体是进行光合作用的质体,它只存在于植物叶肉细胞中。( )

What is the best topic of the passage?

A. John Kennedy and His Prominent Family.
B. The Political Influence of Kennedy Family.
C. The Success of the Youngest American President.
D. John Kennedy,the Most outstanding President.

Anna:__________,where is the post office,please?Lily:Let me see.Go straight for a few minutes,then turn left,you’ll see lpost office. Anna:Thanks a lot. Lily:You’re welcome.

A. Excuse me
B. Hello
C. Good morning
Do you know

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