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【单选题】
关于蛋白质的叙述,错误的是
A.
rRNA能参与蛋白质的生物合成
B.
DNA和蛋白质是染色体的组成成分
C.
人体血浆中含有浆细胞分泌的蛋白质
D.
核糖体上合成的蛋白质不能在细胞核中发挥作用[来源:Z*xx*k.Com]
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举一反三
【单选题】Let me have a look _____your new schoolbag. [     ]
A.
after
B.
like
C.
at
D.
the same
【判断题】干腌法的优点是简单易行,制品潮湿,蛋白质流失多,耐贮藏,具有特殊的腌制风味。
A.
正确
B.
错误
【简答题】It is 100% true that Carmel, Denise and I had once a happy home. (T or F)
【单选题】It is true that ______ you get into a bad habit, you will find it not easy to give it up.
A.
because
B.
since
C.
once
D.
as
【单选题】被狂犬咬伤的伤口最好采用
A.
弱酸冲洗
B.
20%肥皂水冲洗
C.
过氧化氢溶液冲洗
D.
食醋冲洗
E.
90%乙醇冲洗
【判断题】干腌法的优点是简单易行,制品潮湿,蛋白质流失多,耐贮藏,具有特殊的腌制风味。
A.
正确
B.
错误
【单选题】三相半波不可控整流电路,输出电压与输入电压的关系为()
A.
Ud=1.17U2
B.
Ud=0.9U2
C.
U2
D.
0
【单选题】It is true that______.
A.
everyone is interested in scientific findings
B.
the average man often uses in his own vocabulary what was once technical language not meant for him
C.
an educated person would be expected to know most technical terms
D.
various professions and occupations often interchange their dialects and jargons
【多选题】湿腌法的优缺点:
A.
优点腌制液可重复使用
B.
优点是渗透速度快、省时省力、
C.
缺点是腌制均匀
D.
缺点是含水量高、不易保藏。
【简答题】Let me have a look, ?
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