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【单选题】
冷冻干燥中出现的问题及处理的方法错误的是A.
可使用旋转冷冻机避免含水量偏高的问题
B.
为防止喷瓶，应控制预冻温度在共熔点以上
C.
如果供热过快，受热不匀或预冻不完全，会出现喷瓶的情况
D.
加入甘露醇、氯化钠等填充剂可改善产品外形不饱满的问题
E.
反复预冻可改善产品外观
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举一反三
【单选题】When my parents were young, they had to ______ several miles every day to school since they had no money to buy a bike.
A.
occupy
B.
cover
C.
get
D.
make
【判断题】"They had to soldier together ..." means they had to fight in wars together.
A.
正确
B.
错误
【简答题】科学儿童心理学建立的时间为（ ）年。
【单选题】They had to give up the plan because they had ______ money.
A.
come up to
B.
got along with
C.
ran out of
D.
taken charge of
【简答题】面试结束立马录用签合同，要答应吗？面试常见问题 面试结束立马录用签合同，要答应吗？
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