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【单选题】
( )是一种良好的天然乳化剂,如在面包配料中加入适量脱脂大豆粉和大豆磷脂起乳化润湿作用,制作出的面包表皮柔软光泽,内部结构均匀细密。A.
脂肪
B.
饱和脂肪酸
C.
磷脂
D.
不饱和脂肪酸
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举一反三
【单选题】Do you know _________ an “o” and _________ “u” in the word “computer”?
A.
there is, an
B.
is there, an
C.
there is, a
D.
is there, a
【简答题】托运行李体积不能超过 ?
【简答题】托运行李体积不能超过()。
【单选题】There is ______ “s” and ______ “u” in the word “bus”.
A.
an; a
B.
an; an
C.
a; an
D.
a, an
【单选题】The U. S. Department of Labor Statistics indicate that there is an oversupply of college-trained workers and that this oversupply is increasing. Already there is an overabundance of teachers, engineer...
A.
There is an oversupply of labor force and this oversupply is increasing.
B.
Many college graduates find it difficult to get jobs for which they were trained.
C.
There is a short supply of teachers, engineers and other professionals.
D.
There are more temporary jobs than permanent ones in U. S. companies.
【单选题】There is ____ “u” and _____ “s” in ____ word “useful”.
A.
an ; an ; a
B.
a; an ; the
C.
an; an ; the
D.
an ; a ; the
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