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【单选题】
( )是CPU与存储器,输入/输出接口之间的总线。A.
内部总线
B.
外部总线
C.
系统总线
D.
地址总线
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举一反三
【单选题】Refer to Figure 9-6. The size of the tariff on carnations is
A.
$8 per dozen.
B.
$6 per dozen.
C.
$4 per dozen.
D.
$2 per dozen.
【单选题】Refer to Figure 9-6. With trade and without a tariff,
A.
the domestic price is equal to the world price.
B.
carnations are sold at $8 in this market.
C.
there is a shortage of 400 carnations in this market.
D.
this country imports 200 carnations.
【多选题】以下关于B淋巴细胞说法错误的是
A.
B淋巴细胞不属于专职APC
B.
B淋巴细胞可以通过BCR识别Ag
C.
B淋巴细胞把抗原以pMHC I的形式提呈给CD8+ T淋巴细胞
D.
B淋巴细胞在受到Ag刺激后可以分化为浆细胞
【单选题】Figure 9-3. The domestic country is China. Refer to Figure 9-3. With no international trade,
A.
the equilibrium price is $12 and the equilibrium quantity is 300.
B.
the equilibrium price is $16 and the equilibrium quantity is 200.
C.
the equilibrium price is $16 and the equilibrium quantity is 300.
D.
the equilibrium price is $16 and the equilibrium quantity is 450.
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