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【判断题】
为了具有节奏性,教师的语速可以忽快忽慢。
A.
正确
B.
错误
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【简答题】(12分)一个体重50kg的健康人,体内约含有2g铁,这2g铁在人体内不是以单质的形式存在,而是以Fe 2+ 和Fe 3+ 的形式存在。正二价铁离子易被吸收,给贫血者补充铁时,应给予含Fe 2+ 的亚铁盐,如硫酸亚铁。服用维生素C,可将食物中的Fe 3+ 转变成Fe 2+ ,有利于人体吸收。 ①在人体中进行下列转化时, ,①中的  Fe 2+ 作 剂。 ②“服用维生素C,可将食物中的Fe 3+ 转...
【单选题】____ we went those days when we were in the countryside, we were warmly welcomed.
A.
There
B.
Where
C.
Wherever
D.
Whatever
【单选题】以下不是血小板的生理功能
A.
释放血管活性物质
B.
维持血管内皮的完整性
C.
参与止血、 促进凝血
D.
吞噬、病原微生物,识别和杀伤肿瘤细胞
【单选题】We didn’t know you were in trouble at that time, ________we would have given you a hand.
A.
while
B.
when
C.
therefore
D.
otherwise
【单选题】We got lost in the forest and decided to remain _____ we were and waited for rescue.
A.
how
B.
what
C.
where
D.
who
【单选题】The last time we had great fun was________ we were visiting the Water Park. [     ]
A.
where
B.
how
C.
when
D.
why
【单选题】We were not sure whether they _______ more vegetables.
A.
are going to grow
B.
were going to grow
C.
will grow
D.
have grown
【简答题】应收单的形式有两种()和()
【单选题】________ we were out of the traffic jam we were able to resume our normal speed.
A.
Whenever
B.
No sooner
C.
In case
D.
Once
【单选题】We are going for a picnic tomorrow. I'll call Wendy to make sure ________. [     ]
A.
why to start
B.
when to start
C.
what to start
D.
which to start
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