沥青混合料面层压实时应符合以下要求（）。 A.碾压作业时混合料

搜题请搜索小程序“爱下问搜题”

问题多项选择题

沥青混合料面层压实时应符合以下要求（）。

A.碾压作业时混合料的温度应符合初压温度不低于100℃；碾压终了温度钢轮压路机不应低于70℃，轮胎压路机不应低于80℃，振动压路机不应低于65℃

B.碾压时，压路机不得中途停留、转向或制动。当压路机来回交替碾压时，前后两次停留地点应相距10m以上，并应驶出压实起始线3m以外

C.压路机不得停留在温度高于70℃的已经压过的混合料上

D.在压路机压不到的其他地方，应采用振动夯板、热的手夯或机夯把混合料充分压实。已经完成碾压的路面，可以修补表皮

E.当层厚等于或大于4mm时，监理工程师可使用核子密度仪进行现场密实度检验，以代替试验室试样测定

答案

参考答案：B, C, E

完形填空

Scott and his companions were terribly disappointed. When they got to the South Pole, they found the Norwegians（挪威人）had    31    them in the race to be the first ever to reach it. After   32   the British flag at the Pole, they took a photograph of themselves    33   they started the 950-mile journey back.
The journey was unexpectedly    34    and the joy and excitement about the Pole had gone out of them. The sun hardly    35   . The snow storms always made it impossible to sight the stones they had     36   to mark their way home. To make things    37   . Evans, whom they had all thought of    38    the strongest of the five, fell badly into a deep hole in the ice. Having     39   along for several days, he suddenly fell down and died.
The four who were     40   pushed on at the best speed they could    41   . Captain Oates had been suffering for some time from his    42    fact; at night his feet swelled（肿胀） so large that he could    43    put his boots on the next morning, and he walked bravely although he was in great    44    . He knew his slowness was making it less likely that     45   could save themselves. He asked them to leave him behind in his sleeping-bag, but they refused, and helped him     46   a few more miles, until it was time to put up the   47     for another night.
The following morning,     48   the other three were still in their sleeping-bags, he said. “I am just going outside and may be    49    some time.” He was never seen again. He had walked out    50    into the snow storm, hoping that his death would help his companions.

查看答案

单项选择题

患者，右上7远中舌侧大面积龋坏缺损，已经进行根管治疗，原银汞充填物经常脱落，现要求全冠修复。检查：无叩痛，无松动，咬合距离正常，临床牙冠较高，可用的修复方法，除了

A．铸造金属全冠

B．塑料全冠

C．金属烤瓷全冠

D．锤造金属全冠

E．金属树脂联合冠

查看答案