他对课题的覆盖度是惊人的，而且他提供了一些精选的经典的习题。
Its coverage of the subject is impressive and provides a good selection of standard exercises.
精选上等纽约牛排，精心炭烤至您指定的熟度，配厨师精选蔬菜及芝士土豆泥。
USA Prime steak chargrilled to perfection. Served with mashed potato and chef vegetables.
是一种以普硅水泥为胶凝材料，辅以精选细骨料，外掺料，添加剂经特殊工艺配制而成的修补砂浆。具有流动度性较好，粘结力强，不易开裂等特点。
The repair mortar is made by special craft with ordinary silicon cement as cementing material, with selected fine aggregate, admixture, additive as supplementary material.
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