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【單選題】
制做泡菜的發酵過程中，乳酸菌產生乳酸可以抑制異種微生物的生長。當乳酸積累達到一定濃度時又會抑制同種個體的增殖。對上述現象的合理解釋是 [ ]
A.
種內互助
B.
種爭
C.
種間斗爭
D.
整個發酵過程包括以上三種現象
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舉報參考答案：
舉一反三
【單選題】Why does the man run?
A.
try to keep fit.
B.
get ready for a sports meet.
C.
hurry to work at the office
【單選題】I think of life as a good book. The ____ you get into in, the _____ it begins to make sense.
A.
further; more
B.
farther; more
C.
further; much
D.
far; much
【單選題】The letter ____ he has been waiting is from his former teacher.
A.
for which
B.
for
C.
for it
D.
for whom
【單選題】What did Peter do last night?
A.
went over his lessons
B.
went to bed early
C.
took an important exam
相關題目：
【單選題】Why does the man run?
A.
try to keep fit.
B.
get ready for a sports meet.
C.
hurry to work at the office
【單選題】I think of life as a good book. The ____ you get into in, the _____ it begins to make sense.
A.
further; more
B.
farther; more
C.
further; much
D.
far; much
【單選題】The letter ____ he has been waiting is from his former teacher.
A.
for which
B.
for
C.
for it
D.
for whom
【單選題】What did Peter do last night?
A.
went over his lessons
B.
went to bed early
C.
took an important exam
參考解析：
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