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【单选题】
关于着床下列何项错误
A.
囊胚与子宫内膜的结合称为着床
B.
透明带在着床前消失
C.
着床的先决条件是囊胚和子宫内膜发育的同步化
D.
孕卵着床一般在受精后的第8-9天
E.
细胞滋养层能分泌一种蛋白酶，侵蚀子宫内膜，有利于着床
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举一反三
【判断题】The DBMS can maintain the integrity of the database by not allowing more than one user to update the same record at the same time.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The government is _____ and will take the necessary steps to maintain security and stability.
A.
on the alert
B.
out of control
C.
on guard
D.
in vain
查看完整题目与答案
【单选题】军团菌常用培养基为
A.
BCYE培养基
B.
巧克力培养基
C.
PPLO培养基
D.
沙堡培养基
E.
Korthof培养基
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【单选题】Companies can maintain good business relations by abiding by their promises and agreements.
A.
coming up with
B.
breaking away from
C.
living up to
D.
getting rid of
查看完整题目与答案
【单选题】The DBMS can maintain the integrity of the database by allowing ______ to update the same record at the same time.
A.
more than one user
B.
no more than one user
C.
two customers with similar customer numbers
D.
company specialists
查看完整题目与答案
【多选题】肠梗阻患者进行影像学检查的主要目的是()
A.
明确有无梗阻
B.
明确梗阻的类型
C.
判断梗阻时完全性还是不完全性
D.
确定梗阻位置以及梗阻原因
查看完整题目与答案
【单选题】常用分离培养军团菌的培养基是
A.
普通琼脂
B.
BCYE琼脂
C.
EMB琼脂
D.
TSI琼脂
E.
TTC肉汤琼脂
查看完整题目与答案
【单选题】军团菌的培养通常使用
A.
CIN琼脂培养基
B.
BCYE琼脂培养基
C.
NAC培养基
D.
B-G培养基
E.
LB琼脂培养基
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【单选题】常用的分离培养军团菌的培养基是（）
A.
血琼脂平板
B.
罗氏培养基
C.
活性碳酵母浸液琼脂（BCYE.
D.
巧克力色琼脂平板
E.
沙保氏培养基
查看完整题目与答案
【单选题】According to Paragraph 2, that the world can maintain its linguistic diversity in the future is ______.
A.
uncertain
B.
unrealistic
C.
foreseeable
D.
definite
查看完整题目与答案
相关题目：
【判断题】The DBMS can maintain the integrity of the database by not allowing more than one user to update the same record at the same time.
A.
正确
B.
错误
查看完整题目与答案
【单选题】The government is _____ and will take the necessary steps to maintain security and stability.
A.
on the alert
B.
out of control
C.
on guard
D.
in vain
查看完整题目与答案
【单选题】军团菌常用培养基为
A.
BCYE培养基
B.
巧克力培养基
C.
PPLO培养基
D.
沙堡培养基
E.
Korthof培养基
查看完整题目与答案
【单选题】Companies can maintain good business relations by abiding by their promises and agreements.
A.
coming up with
B.
breaking away from
C.
living up to
D.
getting rid of
查看完整题目与答案
【单选题】The DBMS can maintain the integrity of the database by allowing ______ to update the same record at the same time.
A.
more than one user
B.
no more than one user
C.
two customers with similar customer numbers
D.
company specialists
查看完整题目与答案
【多选题】肠梗阻患者进行影像学检查的主要目的是()
A.
明确有无梗阻
B.
明确梗阻的类型
C.
判断梗阻时完全性还是不完全性
D.
确定梗阻位置以及梗阻原因
查看完整题目与答案
【单选题】常用分离培养军团菌的培养基是
A.
普通琼脂
B.
BCYE琼脂
C.
EMB琼脂
D.
TSI琼脂
E.
TTC肉汤琼脂
查看完整题目与答案
【单选题】军团菌的培养通常使用
A.
CIN琼脂培养基
B.
BCYE琼脂培养基
C.
NAC培养基
D.
B-G培养基
E.
LB琼脂培养基
查看完整题目与答案
【单选题】常用的分离培养军团菌的培养基是（）
A.
血琼脂平板
B.
罗氏培养基
C.
活性碳酵母浸液琼脂（BCYE.
D.
巧克力色琼脂平板
E.
沙保氏培养基
查看完整题目与答案
【单选题】According to Paragraph 2, that the world can maintain its linguistic diversity in the future is ______.
A.
uncertain
B.
unrealistic
C.
foreseeable
D.
definite
查看完整题目与答案