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【简答题】
下列关于“一定”的说法存在科学性错误，请举一实例说明： （1）均一、稳定、无色透明的液体一定是溶液（写名称，下同） （2）含有氢、氧元素的化合物一定是碱 （3）由同种元素组成的物质一定是单质 （4）化学反应前后分子的数目一定不变（用化学方程式表示）
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【单选题】妊娠母猪咳嗽，发热，继而流产。取流产胎儿脑组织接种兔，兔出现奇痒后死亡。该病最可能是
A.
猪瘟病毒
B.
猪圆环病毒
C.
猪细小病毒
D.
伪狂犬病毒
E.
猪繁殖与呼吸综合征病毒
【单选题】Our teacher asked me ________.
A.
what was Ann doing these days
B.
why didn’t Peter come to school the day before
C.
when will the dolphin show begin
D.
how long I usually spent on my homework
【单选题】The loud noise outside ______ our teacher’s voice so that we didn’t ______ what he was saying. [ ]
A.
put out; hear
B.
drowned; make out
C.
cut out; recognize
D.
threw away; know
【单选题】Our teacher asked me ________. [ ]
A.
what was Ann doing these days
B.
why Peter didn’t come to school the day before
C.
when will the dolphin show begin
D.
how long I usually spent on my homework
【单选题】i didn’t like our new english teacher, and ____.
A.
neither did my classmates
B.
neither my classmates did
C.
my classmates don’t too
D.
my classmates did not also
【简答题】对急性重型肝炎评价临床抢救效果时最恰当的指标应是
【单选题】妊娠母猪咳嗽,发热,继而流产。取流产胎儿脑组织接种兔,兔出现奇痒后死亡。该病原最可能是(2018真题上162)
A.
猪瘟病毒
B.
猪圆环病毒
C.
猪细小病毒
D.
伪狂犬病病毒
E.
猪繁殖与呼吸综合征病毒
【单选题】I didn’t like our new English teacher, and ____.
A.
neither did my classmates
B.
neither my classmates did
C.
my classmates don't too
D.
my classmates did not also
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