皮皮学，免费搜题
登录
搜题
【单选题】
在柱色谱法进行组分分离时,一般( )组分最先流出A.
吸附能力最弱
B.
含量最多
C.
含量最少
D.
吸附能力强
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】They expected that several hundred guests would attend the opening ceremony, but only ______ people actually showed up.
A.
a great number of
B.
large amounts of
C.
a dozen of
D.
a crowd of
【单选题】Several guests were waiting in the ________for the front door to open.
A.
porch
B.
vent
C.
inlet
D.
entry
【简答题】下列税法构成要素中，属于税法三个最基本要素的是（ ）。
【单选题】Several guests were wailing on the ______ for the front door to open.
A.
porch
B.
vent
C.
inlet
D.
entry
【单选题】There are several guests sitting in the sofa by the window, but ____ are known to me. [ ]
A.
neither
B.
all
C.
no one
D.
none
相关题目：