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【简答题】
甲图是某人在1个标准大气压下的一次平静呼吸中肺内气压的变化曲线图，表示人体呼吸时，膈肌的不同活动状态，请回答： （1）甲图中曲线AB段表示吸气时肺内气压的变化．与之相对应的是中的______（填A或B）状态． （2）甲图曲线BC段表示呼气时的气压变化，这时胸廓的前后、左右、上下径都______．与之对应的是中的______状态． （3）本次呼吸中，吸气结束的那一瞬间是甲图坐标中的B点，此时肺内气压与大气压的值______． （4）肺内气压最大的状态是中的______，膈肌收缩最紧张的状态是的______，肺处于吸气状态的可能是的______，肋间外肌收缩时的状态可能是的______．
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【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
【单选题】The hotel itself can hold 80 guests and, _________, there are several self-cooking apartments.
A.
in particular
B.
in fact
C.
in place
D.
in addition
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