【单选题】Refer to Figure 9-6. The size of the tariff on carnations is
【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
C.
B淋巴细胞把抗原以pMHC I的形式提呈给CD8+ T淋巴细胞
【单选题】企业的组织架构中必须独立的部门是( )。
【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.
【单选题】一般需经3~4周培养才能见到有细菌生长的细菌是