Rail transport plays an important role in the domestic economy of a country.Generally speaking,which of the following may be the advantages of rail transport? ( )
A. Fast delivery and great capacity
B. Safe mode transport
Cost effective
D. Reliable
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The pricing of international air freight is referred to the IATA via TACT(空运货物运价表) which includes the General Cargo Rate,it consists of( )。
A. minimum charge(M)
B. normal general cargo rate(N)
C. lower charge in higher weight (Q)
D. higher rate(H)
The common methods in supply chain management are ( )。
A. Quick Response
B. Efficient Consumer Response
C. Just in Time
D. Enterprise Resource Planning
磁共振成像技术的优势不包括()。
A. 多参数成像
B. 软组织对比度高
C. 无电离辐射
D. 成像速度快
()是不能进行磁共振成像的原子核。
A. 1H
B. 2H
C. 3H
D. 16O