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【单选题】
《中国药典》(2015年版)规定,葡萄糖中重金属检查方法如下:取本品4.0g,加水23mL溶解后,加硝酸盐缓冲液(pH为3.5)2mL,依法检查,含重金属不得超过百万分之五。应取标准铅溶液(1mL相当于10ugPb)的体积为( )。
A.
4mL
B.
5 mL
C.
5.0 mL
D.
2.0 mL
E.
2ml
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参考答案:
举一反三
【单选题】以下属于摩擦类手法的是
A.
一指禅推法
B.
按法
C.
拔伸法
D.
推法
【单选题】You won't feel the _______ of so many trees if people continue to cut___________. [     ]
A.
beautiful; them down
B.
beauty; them down
C.
beautiful; down them
D.
beauty; down them
【单选题】蒹葭 苍苍,白露为霜。所谓伊人,在水一方。溯洄从之,道阻且长。溯游从之,宛在水中央。 蒹葭 萋萋,白露未晞。所谓伊人,在水之湄。溯洄从之,道阻且跻。溯游从之,宛在水中坻。 蒹葭 采采,白露未已。所谓伊人,在水之涘。溯洄从之,道阻且右。溯游从之,宛在水中沚。 其中表示自己离所追寻的物体越来越近的句子是?
A.
宛在水中央 宛在水中坻 宛在水中沚
B.
蒹葭 苍苍,白露为霜。
C.
蒹葭 萋萋,白露未晞。
D.
蒹葭 采采,白露未已
【单选题】《蒹葭》 蒹葭 苍苍,白露为霜。所谓伊人,在水一方。溯洄从之,道阻且长。溯游从之,宛在水中央。 蒹葭 萋萋,白露未晞。所谓伊人,在水之湄。溯洄从之,道阻且跻。溯游从之,宛在水中坻。 蒹葭 采采,白露未已。所谓伊人,在水之涘。溯洄从之,道阻且右。溯游从之,宛在水中沚。 表示道路迂回曲折的是哪一句?
A.
道阻且长
B.
道阻且跻
C.
道阻且右
D.
在水一方
【单选题】下列哪个手法不属于摩擦类手法( )
A.
擦法
B.
搓法
C.
一指禅推法
D.
推法
【单选题】在一输送系统中,改变离心泵出口阀门开度,不会影响()。
A.
管路特征曲线
B.
管路所需压头
C.
泵的特征曲线
D.
泵的工作点
【单选题】下列哪一组手法都属于摩擦类手法( )
A.
摩法、擦法、推法、抹法、运法
B.
搓法、擦法、一指禅推法、推法、抹法
C.
捏法、抹法、擦法、推法、拿法
D.
摩法、擦法、搓法、推法、一指禅推法
【单选题】When On May 8 th , 'Most Beautiful Teacher' Zhang Lili in the city of Jiamusi , Heilongjiang province ,saved her students____ by a bus, but couldn't escape from the tragedy herself.
A.
being run over
B.
being run across
C.
from being run over
D.
from being run across
【简答题】Happiness is for everyone. You don’t need to care about those people who have beautiful houses or those who have nice cars and a lot of money and so on. Why? Because those who have big houses may ofte...
【单选题】Which of the following excited the writer at her 40th birthday?
A.
A lot of beautiful flowers and lovely music.
B.
A large gathering of her close friends.
C.
The unexpected appearance of her parents.
D.
The display of her photographs.
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