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【单选题】
The lecture on DNA repair technology was all right__ but it went on too longA.
by itself
B.
in itself
C.
of itself
D.
despite itself
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【简答题】Refer to Figure 9-15. As a result of the tariff, there is a deadweight loss that amounts toA. B. B. E. C. D + F. D. B + D + E + F.
【单选题】混酥面坯制成后，应放到冷藏冰箱中冷却，其目的是：一是使面团内部水分能充分均匀吸收，二是促使黄油凝固，易于面坯成形，三是能使( )。
A.
上劲的面团得到松驰
B.
促使面团的韧性增强
C.
延长面坯的保质期
D.
促进烘烤时易产生金黄色
【单选题】Refer to Figure 9-15. With the tariff, the quantity of saddles imported is
A.
Q3 - Q1.
B.
Q3 - Q2.
C.
Q4 - Q1.
D.
Q4 - Q2.
【单选题】Refer to Figure 9-15. With the tariff, the domestic price and domestic quantity demanded are
A.
P1 and Q1.
B.
P1 and Q4.
C.
P2 and Q2.
D.
P2 and Q3.
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