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【简答题】
任何是由三种基本结构组成:顺序结构、分支结构和_________结构。
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举一反三
【单选题】气温为23°C时,某河段溶解氧浓度为4.8mg/L, 已知该河段属于II类水体,如采用单因子指数法评价,其指数为(根据GB3838-2002, II类水体溶解氧浓度为6mg/L):
A.
1.5
B.
3.2
C.
4.4
D.
2.8
【单选题】Humans are the ultimate invasive species—when they move into new territory, they often displace the wildlife that was already living there. And as land is cleared for those new cities—especially in th...
A.
to force people to move away from their home to another place
B.
to move something from its usual position
C.
to remove somebody from a job or position
D.
to t ake the place of somebody/something
【单选题】气温为 23°C时,某河段溶解氧浓度为4.5mg/L,已知该河段属于II类水体,如采用单项指数法评价,其指数为( )。(根据GB 3838—2002,II类水体溶解氧标准为≥6mg/L)
A.
0.75
B.
1.33
C.
1.58
D.
3.25
【单选题】气温为23°C时,某河段溶解氧浓度为4.5 mg/L,已知该河段属于II类水体,如采用单项指数法评价,其指数为( ) 。(注意评价方法的选择。根据GB 3838--2002,II类水体溶解氧标准 为≥6mg/L)
A.
0.75
B.
1.33
C.
1.58
D.
3.25
【简答题】There are warm tropical regions all over the globe, but only the Indians of the South American rain forests have formed the habit of sleeping in the open air. Long before they made painful acquaintanc...
【单选题】气温为 23 °C时, 某河段溶解氧浓度为4.5mg/L,已知该河段属于II类水体,如采用单项指数法评价,其指数为( )。(根据《地表水环境质量标准》,II类水体溶解氧标准为不小于6mg/L)
A.
0.75
B.
1.33
C.
1.58
D.
3.25
【简答题】朗读以下段落并录音上传 The next greenhouse was called the “Humid Tropics Biome”. This was really enormous. Immediately inside this greenhouse I began to feel hot and sticky in the moist air. There was a heavy ri...
【简答题】请选择恰当词语填空 (注意:填写代表单词的大写字母,不填单词) A) allure B) aroma C) clammy D) dropping E) fetid F) gigantic G) humidity H) maintained I) prod J) rainforest K) re...
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