If you could study a subject that you've never had a chance to study, what subject would you choose? Explain your choice，using specific reasons and details.

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on vocabulary words:
No of characters: 515.0 444.711560045 116% => OK
No of words: 130.0 116.580246914 112% => OK
Chars per words: 3.96153846154 3.81502700369 104% => OK
Fourth root words length: 3.37664837539 3.28032121604 103% => OK
Word Length SD: 2.21673302981 1.8723322822 118% => OK
Unique words: 87.0 76.076318743 114% => OK
Unique words percentage: 0.669230769231 0.655143326166 102% => OK
Syllable count: 162.0 141.574747475 114% => OK
Avg_syllables_per_word: 1.2 1.21358024691 99% => OK

Performance on coherence:
Topic speech coherence ratio: 0.0260079465067 0.0738818816272 35% => It may have issues on recording quality or the content is not so closely related to content.

Acoustic performance on paragraphs:
How many acoustic paragraphs: 2.0 3.20202020202 62% => OK
Average paragraph length: 65.0 60.3232687746 108% => OK
STD paragraph length: 39.0 17.3634065801 225% => Paragraph length changes often.
Average paragraph duration: 23.11 22.9064221017 101% => OK
STD paragraph duration: 13.36 6.49597621602 206% => The duration of acoustic paragraphs changes often.

Acoustic performance on sentences:
How many acoustic sentences: 30.0 31.1548821549 96% => OK
Average acoustic sentence length: 4.33333333333 4.0588447711 107% => OK
STD acoustic sentence length: 4.70696882883 3.18357895611 148% => OK
Average acoustic sentences duration: 1.48033333333 1.46810986539 101% => OK
STD acoustic sentences duration: 1.65481415539 1.01537252472 163% => OK

Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 30.0 28.6644219978 105% => OK
Total acoustic silence duration: 3.97 5.28593714927 75% => OK
Average acoustic silence duration: 0.132333333333 0.187982170178 70% => Maybe the speech rate is too fast.
STD acoustic silence duration: 0.12082172358 0.154715141812 78% => OK

Acoustic performance on acoustic words:
Total word duration: 39.17 35.408047138 111% => OK
Average word duration: 0.301307692308 0.306236595465 98% => OK
STD word duration: 0.201259069405 0.198589292138 101% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 11.0 6.3164983165 174% => It may have 'ehn' in the speaking, or it has hesitations or overlapping speeches.
Total_disfluencies_duration: 8.78 5.14435465769 171% => Somehow the hesitation is serious.
Total acoustic noise duration: 1.42 2.80480359147 51% => OK

Acoustic rates:
Total speech duration: 46.22 45.0716498316 103% => Need to finish the speech on time.
Compare to expected duration: 1.02711111111 1.00159221848 103% => OK
Rate of silence: 0.649069666811 0.637764685501 102% => OK
Rate of speech: 2.81263522285 2.58495923209 109% => OK
Rate of speech by unique words: 1.88230203375 1.68816559523 111% => OK
Rate of word duration by unique words: 2.22108756702 2.15290372801 103% => OK
Average articulation rates: 0.292378815385 0.343871460585 85% => OK

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Maybe the speech is too long. It should be in 45 seconds.

Rates: 66.6666666667 out of 100
Scores by speech e-grader: 20.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.