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举一反三
【单选题】所谓潜水完整井是指( )。
A.
抽水时产生的降落漏斗在隔水顶板范围内，且过滤器底端到达不透水层
B.
抽水删产生的降落漏斗在隔水顶板范围内，但过滤器底端位于含水层中
C.
自由水面位于隔水顶板以下，且过滤器底端到达不透水层
D.
抽水叫产生的降落漏斗，位于潜水层，但过滤器底端到达不透水层
【多选题】潜水的特征有（ ）。
A.
潜水具有自由水面，不承受静水压力。
B.
分布区与补给区基本一致。
C.
潜水含水层动态变化比较大，呈现明显的季节变化。
D.
开采价值大；易污染。
【单选题】It’’s time to pack your hula skirt. With summer about to start, few destinations attract as many tourists from families to honeymooners — as Hawaii. Just ask the 7.4 million people who visited last ye...
A.
the volcano has not seen lava flow in 400 years
B.
the volcano will not erupt tomorrow
C.
there is a good hotel — Grand Wailea Resort Hotel & Spa
D.
It provides pleasure for children and adults alike
【单选题】— What sport do you like best?— Springboard diving(跳板潜水)______to dive into water from high board!
A.
What a fun is it
B.
How fun it is
C.
How a fun is it
D.
What fun it is