【名词&注释】
地理位置(geographical position)、有机物(organic compounds)、建始县、不一样(unlikeliness)、呼吸作用(respiration)、潜水艇(submarine)、进行光合作用
[单选题]“远征号”潜水艇(submarine)从长江某基地赴东海执行任务过程中 【 】
A. 潜水艇(submarine)在海水中潜行时所受的浮力大于在江水中潜行时所受的浮力
B. 潜水艇(submarine)在海水中潜行时所受的浮力等于在江水中潜行时所受的浮力
C. 潜水艇(submarine)在海水中潜行时所受的重力小于在江水中潜行时所受的重力
D. 潜水艇(submarine)在海水中潜行时所受的重力等于在江水中潜行时所受的重力
查看答案&解析
举一反三：
[单选题]Howmuchdoestheticket______fromShanghaitoBeijing?
A. cost
B. took
C. spend
D. pay
[单选题]在我州建始县花坪乡的关口村，由于那里特殊的地理位置，白天光照强、气温高，夜间气温较低，所产的“关口葡萄”特别甜。这是因为与别处相比：
A. 关口村的土地特别肥沃
B. 关口村的葡萄品种与别处不一样
C. 关口村的葡萄只进行光合作用，不进行呼吸作用
D. 关口村的葡萄白天光合作用制造的有机物多，晚上呼吸作用消耗的有机物相对较少
[单选题]14．
A. stops
B. loses
C. keeps
D. provides
[单选题]23． Why did I feel worried suddenly?
A. I felt the bad tooth was still there．
B. There was cotton-wool in my mouth．
C. There was a hole in my tooth．
[单选题]（ ）–It’s raining heavily.Let’s stand under that big tree.–__________.It’s very dangerous to do so in such weather.
A. We don’t have to
B. Let’s go
C. All right
D. We’d better not
[单选题]6． —Which number is next to nineteen?—________．
A. Twenty
B. Fifteen
C. Thirty
D. Sixteen
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