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装饰抹灰砂浆用水量控制。用水量没有严格的控制，但要适量，如水磨石，若面层砂浆用水量过多，则会降低水磨石的强度和耐磨性。( )

A. 对
B. 错

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抹灰工程中对砂的质量要求是：煤屑、云母等不超过砂质量的15%。( )

A. 对
B. 错

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The seventeenth-century physicist Sir Isaac Newton is remembered chiefly for his treatises on motion and gravity. But Newton also conducted experiments secretly for many years based on the arcane theories of alchemy, trying unsuccessfully to transmute common metals into gold and produce rejuvenating elixirs. If the alchemists of the seventeenth century had published the results of their experiments, chemistry in the eighteenth century would have been more advanced than it actually was. Which one of the following assumptions would allow the conclusion concerning eighteenth-century chemistry to be properly drawn

A. Scientific progress is retarded by the reluctance of historians to acknowledge the failures of some of the great scientists.
B. Advances in science are hastened when reports of experiments, whether successful or not, are available for review by other scientists.
C. Newton’s work on motion and gravity would not have gained wide acceptance if the results of his work in alchemy had also been made public.
D. Increasing specialization within the sciences makes it difficult for scientists in one field to understand the principles of other fields.
E. The seventeenth-century alchemists could have achieved their goals only if their experiments had been subjected to public scrutiny.

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特种用途抹灰砂浆，常用的特种砂浆有：耐酸砂浆、保温砂浆、防水砂浆等。其配制方法通常采用体积比。( )

A. 对
B. 错

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The wild mouflon sheep of the island of Corsica are direct descendants of sheep that escaped from domestication on the island 8,000 years ago. They therefore provide archaeologists with a picture of what some early domesticated sheep looked like, before the deliberate selective breeding that produced modem domesticated sheep began. The argument above makes which of the following assumptions

A. The domesticated sheep of 8,000 years ago were quite dissimilar from the wild sheep of the time.
B. There are no other existing breeds of sheep that escaped from domestication at about the same time as the forebears of the mouflon.
C. Modern domesticated sheep are direct descendants of sheep that were wild 8,000 years ago.
D. Mouflon sheep are more similar to their forebears of 8,000 years ago than modem domesticated sheep are to theirs.
E. The climate of Corsica has not changed at all in the last 8,000 years.

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装饰抹灰砂浆用水量控制。用水量没有严格的控制，但要适量，如水磨石，若面层砂浆用水量过多，则会降低水磨石的强度和耐磨性。( )

A. 对 B. 错

抹灰工程中对砂的质量要求是：煤屑、云母等不超过砂质量的15%。( )

特种用途抹灰砂浆，常用的特种砂浆有：耐酸砂浆、保温砂浆、防水砂浆等。其配制方法通常采用体积比。( )

A. 对
B. 错