问题
填空题
定向爆破是使用抛掷药包进行的大爆破，系指使一定数量的爆破介质按照指定的方向抛掷出去，由于临空的影响，主导抛掷方向总是指向（）上。如果临空面的曲率半径越小，介质抛掷速度（），抛掷堆积越（）。
答案
参考答案：最小抵抗线方向；越大；集中
搜题请搜索小程序“爱下问搜题”
定向爆破是使用抛掷药包进行的大爆破，系指使一定数量的爆破介质按照指定的方向抛掷出去，由于临空的影响，主导抛掷方向总是指向（）上。如果临空面的曲率半径越小，介质抛掷速度（），抛掷堆积越（）。
参考答案：最小抵抗线方向；越大；集中
| 完形填空。 | ||||
| What does peace mean to you? A place without noise, trouble, or hard work? There once was a king who 1 a prize to the artist who would 2 the best picture of peace. Many artists 3 . The king looked at all the pictures, but there were only two he really 4 and had to choose between them. One picture was of a 5 lake. The lake was a perfect mirror, for peaceful towering mountains were all around it. Overhead was a blue sky 6 soft white clouds. All who saw this picture thought that it was a perfect picture of 7 . The other picture had 8 too. But these were uneven and bare. Above was an angry sky in which 9 played and from which rain fell. 10 the side of the mountain ran a foaming waterfall. This didn't look 11 at all. But when the king looked carefully, he saw 12 the waterfall a tiny bush growing in a crack in the rock. In the 13 a mother bird had built her nest. There, in the middle of the 14 of angry water, sat the mother bird on her nest-perfect peace. 15 picture do you think won the prize? The King chose the second picture. Do you know 16 ? "Because peace does not 17 being in a place where there is no noise, trouble, or hard work." 18 the King. "Peace means being in the 19 of all those things and still be calm in your 20 . That is the real meaning of peace." | ||||
|