Under no circumstances should we forget ______.（人口的重要性)

A.In

B.Through

C.With

D.Under

A.with

B.without

C.carrying

D.under

A.under

B.uck

C.UK

A.under

B.in

C.on

D.for

[A] in

[B] about

[C] under

[D] on

A.in

B.At

C. with

D.under

Under the CIF term , the unit price includes ______, ______ and ______.

A.in

B.on

C.under