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【多选题】
关于苷的叙述,下列说法中正确的是
A.
苷中的非糖部分称为苷元
B.
苷类化合物都无旋光性
C.
可用molish反应进行鉴别
D.
可用色谱法鉴别
E.
苷类化合物不溶于水
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【单选题】Sally likes school life. She would like to be a ________ in the future. A. doctor B. head teacher C. farmer
A.
doctor
B.
head teacher
C.
farmer
【简答题】 clutch, revert, galvanize , financially, slump, look on, nag, graduation, morph, testing 1. She would like to be more __________independent.
【单选题】Jill loves singing, ____ she would like to be a singer.
A.
but
B.
because
C.
so
D.
before
【单选题】She would like to be more __________independent.
A.
commercially
B.
economically
C.
business
D.
financially
【单选题】地方性斑疹伤寒的主要传染源是
A.
病人
B.
野鼠
C.
家鼠
D.
病原携带者
E.
隐性感染者
【简答题】She would like to be more independent. ( finance )
【简答题】Then this girl got the idea, the incredible idea, that she would like to be the world’s greatest woman runner. (B1U2A)
【单选题】溶胶和大分子溶液的本质区别在于
A.
粒子大小不同
B.
渗透压差别很大
C.
热力学稳定性不同
D.
丁达尔效应的强弱不同
【简答题】Then this girl got the idea, the incredible idea, that she would like to be the world’s greatest woman runner. (B1U2A)
【判断题】强制怠速是指汽车下坡或滑行时,节气门接近关闭,发动机被汽车传动系拖动高速运转,这种工况称为强制怠速。
A.
正确
B.
错误
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