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Last night a big fire _____ in the suburbs of the town, causing huge losses to the area.
Last night a big fire \_\_\_\__ in the suburbs of the town, causing huge losses to the area.
According to the passage, which of the following statements is true?
According to the passage, which of the following statements is true?
The phrase “kick off” in paragraph 1 is closest in meaning to _____.
The phrase “kick off” in paragraph 1 is closest in meaning to \_\_\_\__.
The entire structure cost more than $2.5 million to build at the time.
The entire structure cost more than $2.5 million to build at the time.
在使用某种测量仪器对某物体进行测量时，得到的长度测量结果为0.0168米，则这个测量结果有____位有效数字．在利用单摆测定重力加速度g的实验中，如果以悬线长当作摆长，则测得的重力加速度g的值与实际值相比____（填写“偏大”、“偏小”或“不变”）．
在使用某种测量仪器对某物体进行测量时，得到的长度测量结果为0.0168米，则这个测量结果有\_\_\_\_位有效数字．在利用单摆测定重力加速度g的实验中，如果以悬线长当作摆长，则测得的重力加速度g的值与实际值相比\_\_\_\_（填写“偏大”、“偏小”或“不变”）．
汽车紧急刹车后做匀减速直线运动，经2s后停下．如果在这个过程中汽车的加速度a＝－6m/s2，那么汽车刹车后经过的路程是____m．
汽车紧急刹车后做匀减速直线运动，经2s后停下．如果在这个过程中汽车的加速度a＝－6m/s2，那么汽车刹车后经过的路程是\_\_\_\_m．