下列操作是否错误?在容量瓶中稀释浓H2SO4();在酸式滴定管中装入水玻璃()。

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问题:

下列操作是否错误?在容量瓶中稀释浓H2SO4();在酸式滴定管中装入水玻璃()。

考点:化学分析工考试初级化学分析工初级化学分析工题库
题型:填空题

下列推理属于哪种情况?

大前提:希腊文明是西方文明的源泉。小前提:雅典民主制是希腊文明的典型代表。

结论:雅典民主是迄今为止最完善的民主。

A.大前提正确,小前提、结论错误   

B.大前提、小前提正确,结论错误

C.大前提错误,小前提、结论正确   

D.大前提、小前提错误,结论正确

题型:填空题
Garlic (大蒜) is one of the most common spices of the kitchen, and the good news is that growing garlic indoors is simple. Garlic can be easily grown at home from individual cloves (瓣), which is the most commonly used form of cultivating garlic than growing garlic from seeds. Here are some useful tips on growing garlic indoors.
Autumn is the best time to plant garlic. Garlic requires enough time to develop strong roots. In warmer climate, it can be delayed to late winter or early spring.
Ensure the container used to grow garlic is large enough for the roots to have enough space to grow. The larger the size of the container, the healthier and bigger the garlic bulbs (鳞茎) will be. The container should also have holes at the bottom so that the water can drain (流走) out easily.
Sow each clove vertically into the soil at a depth of one inch. Ensure that the blunt end (平端) is facing downward. In case of container gardening, the number of cloves to be sowed in each container depends on the size of the container. In case you are planning to sow more than one clove in each container, make sure that each clove is at least 5 inches apart from others.
For the best growth of the garlic plant, choose a sunny spot where there is enough air circulation (流通). This will aid evaporation (蒸发) of too much amount of water and prevent the soil from becoming too damp in case too much watering does occur. Window sill (窗台) is a good place to put your container of garlic plant.
Once the clove has been sowed, cover the soil with a layer of mulch (覆盖物) to protect the roots from extreme cold. Provide fertilizer at the correct time in right amounts, and proper watering. Once the garlic tips start appearing in the spring season, pull back the layer of mulch. Feed the plants once or twice every month with fertilizer.
Items
 小题1: on growing garlic indoors.
Time
● It’s best to plant garlic in   小题2:        
● In warmer climate, it’s also suitable to plant garlic in late winter or early spring.
Container
● Be large enough to   小题3:  with enough space to grow.
● Have holes at the bottom to 小题4: the water to drain out easily.
Sowing
● Sow each clove vertically into the soil one inch   小题5:        .
● Ensure that the blunt end is facing   小题6:   .
●Ensure that each clove is at least 5 inches apart from others in a container.
Place
●Choose a sunny spot like window sill having enough   小题7:  to aid evaporation of too much amount of water.
Care
●Cover the soil with a layer of mulch to   小题8: from extreme cold after sowing the clove.
● Provide right amounts of fertilizer at the correct time.
● Water the clove 小题9:           .
 小题10:   the layer of mulch once the garlic tips start appearing.
● Use fertilizer to feed the plants once or twice a month.
题型:填空题

脂溢性皮炎头皮损害()。

A.常与痤疮伴发

B.常伴有耳后皱襞处裂隙

C.毗邻者倾向融合形成环形、多环形或地图状

D.皮损类似体癣,易继发念珠菌感染

E.常有鳞屑型及结痂型

题型:填空题

对于一个复杂电路,有时并不了解所有支路的情况,而只要求出其中某一支路的电流,这时采用()定理计算较为方便。

A、基尔霍夫

B、欧姆

C、戴维南

D、叠加

题型:填空题

钻削用量包括()、进给量和切削深度三要素。

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