According to the woman, the war memorial is __________ .
A. easy to find
B. impossible to notice
C. a little difficult to see
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The man finds the woman’s directions __________ .
A. difficult to catch
B. a little confusing
C. easy to follow
What does a paragraph usually consist of?1.______ 2.______3._______
硅酸盐水泥的体积安定性用沸煮法检验必须合格。
A. 对
B. 错
检验水泥安定性时,当两个试饼判别结果有矛盾时,该水泥的安定性为不合格。
A. 对
B. 错