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【单选题】
化学品火灾的扑救要特别注意灭火剂的选择。扑救遇湿物品火灾时,禁止用水、酸碱等湿性灭火器扑救,对于钠、镁等金属火灾的扑救,应选择的灭火剂是()。
A.
二氧化碳
B.
泡沫
C.
干粉
D.
卤代烷
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【单选题】关于血细胞分析仪法计数红细胞正确的是
A.
计数红细胞时连同白细胞一起计数
B.
血细胞分析仪都是用电阻抗法进行红细胞计数
C.
MCV、MCH、MCHC可由仪器直接测出
D.
RDW是仪器测定红细胞和血红蛋白后计算得出
【单选题】甲状腺全部切除术后,长期服用甲状腺素片的病人,以下哪项不是健康教育的内容
A.
每天按时服药
B.
不随意停药
C.
出现心慌时增加剂量
D.
随年龄调整剂量
E.
每年到医院复查一次
【单选题】关于血细胞分析仪法计数红细胞正确的是:
A.
计数红细胞时连同白细胞一起计数
B.
血细胞分析仪都是用电阻抗法进行红细胞计数
C.
MCV、MCH、MCHC可由仪器直接测出
D.
RDW是仪器测定红细胞和血红蛋白后计算得出
E.
白细胞与血小板不干扰红细胞计数
【单选题】甲状腺全部切除术后,长期服用甲状腺素片的病人,健康教育的内容不包括
A.
不随意停药
B.
每天按时服药
C.
每年到医院复查1次
D.
随年龄调整剂量
E.
出现心慌时增加剂量
【单选题】There was a big pile of bricks on the top of a tall building and a man had to bring them down to the ground. He had a long rope which went over a pulley(滑轮) at the roof of the building. The other end ...
A.
He was afraid that someone would steal his box.
B.
Because he wanted to climb up along the rope.
C.
He fastened the end of the rope in order to keep the box unmoved.
D.
Because he wanted to prevent the box from coming down.
【简答题】要把孩子培养成真正有文化的人,父母首先要拓宽孩子的眼界。
【单选题】There was a big pile of bricks on the top of a tall building and a man had to bring them down to the ground. He had a long rope which went over a pulley (滑轮) at the roof of the building. The other end...
A.
He was afraid that someone would steal his box.
B.
Because he wanted to climb up along the rope.
C.
He fastened the end of the rope in order to keep the box unmoved.
D.
Because he wanted to prevent the box from coming down.
【单选题】关于血细胞分析仪法计数红细胞,正确的是
A.
计数红细胞时,连同白细胞一起计数
B.
血细胞分析仪都是用电阻抗法进行红细胞计数
C.
白细胞与血小板不干扰红细胞计数
D.
RDW是仪器测定红细胞和血红蛋白后计算得出
E.
MCV,MCH,MCHC可由仪器直接测出
【单选题】Once a man and his wife worked for a businessman. There was a big box in the business-man-s living room. The businessman pointed at the box and said,'There's only one thing you(11) do.Don't open the b...
A.
needn’t
B.
wouldn’t
C.
mustn’t
D.
shouldn't
【单选题】(2016·四川高考)如图 2 所示,正六边形abcdef区域内有垂直于纸面的匀强磁场。一带正电的粒子从f点沿fd方向射入磁场区域,当速度大小为v b 时,从b点离开磁场,在磁场中运动的时间为t b ,当速度大小为v c 时,从c点离开磁场,在磁场中运动的时间为t c ,不计粒子重力。则 ( )
A.
v b ∶v c =1∶2,t b ∶t c =2∶1
B.
v b ∶v c =2∶1,t b ∶t c =1∶2
C.
v b ∶v c =2∶1,t b ∶t c =2∶1
D.
.v b ∶v c =1∶2,t b ∶t c =1∶2
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