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【单选题】
有机食品证书有效期为（ ）。A.
一年
B.
两年
C.
三年
D.
五年
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举一反三
【单选题】If you _____ travel and trying to adjust to a new time zone, you may not be ready to face the new challenging environment yet.
A.
keep up with
B.
are exhausted from
C.
visit with
D.
keep back
【单选题】If you are ______about something, you feel you do not understand it.
A.
confusing
B.
confused
C.
exhausting
D.
exhausted
【多选题】关于语速的表述. PaceThis is how quickly or slowly you are speaking. Consider: • If you speak too quickly, your audience will become exhausted listening to you. • If you speak too slowly, your audience will l...
A.
Vary your pace for effect throughout your speech. Be aware of how fast you are speaking. 在整个演讲过程中改变你的语速以达到效果。注意你说得有多快。
B.
Pause after a key idea or statement to give your audience time to think about what you have just said. 在一个关键的观点或陈述之后暂停，让你的听众有时间思考你刚刚说了什么。
C.
Pause after a question so that your audience can contemplate a response. 提问后停顿一下，以便听众能够思考如何回答。
【单选题】If you are _______ from travel and trying to adjust to a new time zone, you may not be ready to face the new challenging environment yet.
A.
exhausted
B.
discarded
C.
revolving
D.
involving
【简答题】If you are exhausted _______ travel and trying to adjust to a new time zone, you may not be ready to face the new challenging environment yet.
【简答题】根据所给句子，选择最佳的应答语。每个选项只能用一次。 ( )1. Why are you late for class? ( )2. If you don't get enough sleep, you'll be exhausted in class. ( )3. Have you ever been an April Fool, Maria? ( )4. Hi,...
【简答题】if you are exhausted, it will 5) you up.
【简答题】阅读下列说明，回答问题1至问题5，将解答填入答题纸的对应栏内。 【说明】 某高校拟对学生公寓网络（已知网络主机超过3000台）进行改造，该校网络部门在技术方案讨论的过程中，提出了以太网接入、ADSL接入和PON接入三种思路。该部门技术主管在对三种方案的建设成本、网络安全、系统容易维护、宽带综合业务等方面综合考虑后决定采用GPON接入方式，并给出了基于GPON技术的学生公寓宽带初步设计方案，如图1-...
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