兔子昂

This book is ________ that one. But __________ than that one.

This box is ________ that one.

-Whats your brother like? -He is _________.

I will visit you if Father _________ me.

Now Mike isn’t here. He ________ Mr. Green’s. Perhaps he ________ back in a few minutes.

This bright girl __________ the truth in front of the enemy.

Look out ! That tree _______ fall down.

Every time I _________ there, I will buy him something nice.

The bridge which ________ last year looks really beautiful.

Thispencilis ________ anthatone.

She ________ the door before she goes away.

Thehouseis ________ smallforafamilyofsix.

Thejacketwasso ________ thathedecidedtobuyit.

Ourclassroomis _________ largerthantheirs.

Mrs.Blackhasgot _________ insteadofgettingany better.

They can’t leave until they _________ their work .

Whenwespeaktopeople,weshouldbe __________ .

Whenwearrived,wefoundthemeetingroomcrowdedwith _________ students.

Itwasveryhotyesterday,butitis ________ today.

I will take my daughter with me when I __________ Shanghai.

What _________ if I drink this ?

Throughthewindowwecanseenothingbut _________ buildings.

Theearthisabout ________ asthemoon.

I ________ here since I moved here.

That day he ___________ his clothes before he came to see me.

枸溶性磷肥是指能溶于水的磷肥

植物发生缺镁时，首先幼叶出现症状

植物缺少磷元素，会出现专一的缺素症状，只有补充磷元素，才能缓解或消除症状，其它任何元素都不能替代；

植物吸收镁属被动吸收，与植物的蒸腾作用关系大，湿度大对镁吸收不利。

植物体的磷素以有机态为主

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