使用钢管及复合管的采暖系统的水压试验合格标准是什么？

下列加线词语解释有误的一项是（     ）

A．恨晨光之熹微熹微：微明

B．定乎内外之分分：分际

C．归去来兮来：回来

D．绝云气绝：直上穿过

科学家已经合成出氧的一种单质O₄，下列关于该物质的说法正确的是   （   ）

A．摩尔质量是64g

B．是氧的一种同位素

C．分子中含有离子键

D．是氧的一种同素异形体

Many students have hobbies, such as reading, painting, growing vegetables in their gardens, and looking after animals. Some hobbies are relaxing and (16) are creative. Hobbies can develop your interests and help you learn new skills.
David Smith is a student, and his hobby is writing. (17) the sumer of 2000, he spent four weeks on a summer camp. As well as the usual activities, such as sailing, climbing and mountain biking, there was a writing workshop with a professional (18) "She asked us to imagine that we were in a story. Then we wrote about our (19) at the camp. "
In senior high school David wrote a story about teenage life, and it (20) as a book in 2003. Many teenagers love his book, and as a result, David has become a (21) young writer.
David has been very lucky (22) his hobby has brought him enjoyment and success, but he is (23) interested in many other things. "I like playing volleyball, too" says David. "I spend some of my free time playing volleyball for my school team. (24) I’ll write more books in the future, but I’m not sure. "
It’s sometimes difficult (25) that we shouldn’t spend all our time on our favourite hobby. There are many other interesting things to do in life, and we should try to do something new or different.

Ⅱ. 完形填空/Cloze

A．other

B．others

C．the other

D．another

热气疮的病机为

A．气血虚而寒痰凝滞
B．湿热火毒内蕴，气血瘀滞
C．湿郁汗出不彻
D．风热之毒，阻于肺胃二经，湿热熏蒸皮肤而发
E．温病邪入营血

基金日常估值由( )进行。

A．基金注册登记机构
B．基金管理人
C．基金托管人
D．监管机构