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【单选题】
醛、酮化合物从挥发油中分离时用试剂( )。A.
10%H 2 SO 4
B.
20%NaOH
C.
30-40%NaHSO 3
D.
5%NaHCO 3
E.
5%NaHSO 3
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【简答题】1《国防法》第二十二条规定"中华人民共和国的武装力量,由中国人民解放军、中国人民武装警察部队、民兵组成。"中国武装力量实行 "()"的基本体制。
【简答题】Which means of international payment is a kind of banker’s credit?A. Remittance. B. Collection. C. L/C. D. D/D
【单选题】The short-answer test is a kind of____between the composition and selection types.
A.
mixture
B.
collection
C.
compound
D.
compromise
【单选题】Which means of international payment is a kind of bank credit?
A.
remittance
B.
collection
C.
L/C
D.
D/D
【单选题】Which kind of collection is very risky for the seller?
A.
D/A
B.
D/P at sight
C.
D/P after sight
D.
D/P
【单选题】The clean collection is a kind of collection accompanied by ( ) documents only.
A.
commercial
B.
governmental
C.
non-governmental
D.
financial
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