在制造成形刀时，对截面尺寸精度有较多要求，可利用（ ）等来检验。
A. 卡尺
B. 样板
C. 标准圆弧样板
D. 投影仪
正确的加工顺序应遵循前工序为后续工序准备（ ）的原则。
A. 生产
B. 装配
C. 基准
D. 工序
At an auction, a bidder may get an item at a low price if he______.
A. beats others in the bidding
B. promises to sell the item again later
C. can fix a "reserve" price
D. reaches some agreement beforehand with other prospective buyers
The preface to the second edition of ______is in fact a manifesto for English Romanticism.
A. Kubla Khan
B. Don Juan
C. Ode to the West Wind
D. Lyrical Ballads
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