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【简答题】
可逆反应2NaHCO 3(s) ⇋ Na 2 CO 3(s) + H 2 O (g) + CO 2(g) 在100°C时平衡常数 K ⊖ =0.23 。 NaHCO 3 当做药物使用灭菌,灭菌方法是在100°C条件下通入100KPa的潮湿CO 2 ,问此条件下水蒸气的分压在什么范围。
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反馈参考答案：
举一反三
【简答题】在严格的厌氧条件下酒精发酵过程中,使用放射性标记的碳源进行示踪原子实验。 ( a)如果葡萄糖的第1个碳用14C标记,那么14C将出现在产物乙醇的哪个位置上? ( b)在起始的葡萄糖分子的哪个位置上标记14C ,才能使乙醇发酵释放出的二氧化碳都是14C标记的14CO 2 。
【判断题】Kohonen asserts that students are able to make quite accurate assessment of their own achievements. With peer-assessment students are involed in assessing each others' work. This will give them a sens...
A.
正确
B.
错误
【单选题】The performer was waving his stick in thestree
A.
44. The performer was waving his stick in thestreet and it ___ missed the child standing nearby. （上海春） A. narrowly
B.
nearly
C.
hardly
D.
closely
【简答题】“家鸡打得团团转，野鸡不打满天飞”反映了（ ）。
【单选题】how often the people went out and what kinds of ______
A.
avenues they attended
B.
events they attended
C.
attends they attended
D.
bends they attended
【单选题】购买材料时应该根据支付结算的方式来确定贷方科目,如果企业未支付贷款,办理了托收承付手续,则贷方应该使用的科目是
A.
应付账款
B.
应付票据
C.
其他货币资金
D.
银行存款
【简答题】- 1 2 的倒数是-2-2， 16 =44．
【简答题】They went out often with a bunch _______ mutual friends.
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