题目内容

To ________ is to save and protect, to leave what we ourselves enjoy in such good condition that others may also share the enjoyment.

A conserve
B conceive
C convert
D contrive

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Put on dark glasses or the sun will ________ you and you won’t be able to see.

A discern
B distort
C distract
D dazzle

In ________ times human beings did not travel for pleasure but to find a more favourable climate.

A prime
B primitive
C primary
D preliminary

因为梁的集中标注是对梁的整体性的标注，所以其标注取值优先。

A. 对
B. 错

基于梁抗弯曲性能的考虑，为了提高截面对中性轴的惯性矩，梁的高度都是大于宽度的。

A. 对
B. 错