3. Hit-and-run statistics plainly show that this form of vehicular __________ has become distressingly common in Taiwan.
(A) admission
(B) license
(C)training
(D)wrongdoing

19. Which of the following statements is incorrect?(A) A buffered solution is one that resists a change in pH when either hydroxide ions or protons are added.(B) The ability of a buffer system to resist pH changes is its buffer capacity, indicated by ẞ value.(C) The Henderson-Hasselbalch equation enables to approximate the pH of a buffer solution.(D) The hydronium ion concentration of a solution containing a weak acid and its conjugate base is independent of the ratio of the molar concentrations of these two solutes as well as dilution.(E) The composition of buffer solutions can be visualized by plotting the relative equilibrium concentrations of the two components of a conjugate acid/base as a function of the pH of the solution.

20. Which of the following statements is correct?(A) In volatilization gravimetry, the analyte is separated from other constituents of a sample by converting it to a precipitate of known chemical composition.(B) In precipitation gravimetry, the product should be of sufficiently low solubility and reactive with constituents of the atmosphere.(C) A colloid consists of solid particles from 10-2 to 10-6 m in diameter that are visible to the naked eyes.(D) Nucleation is a process in which a maximum number of atoms, ions, or molecules join together to give a small number of larger particles.(E) When a precipitate is formed at high relative supersaturation, nucleation is the major precipitation mechanism.

1. While recent snow storms have closed many schools in the U.S., some are choosing to hold classes__________， turning snow days into 'cyber' days.(A) realistically (B) virtually(C)optimistically(D)conceptually

2. The __________ for Tommy combined sadness and humor on Saturday, with his friends paying their final respects to this acclaimed actor.(A) fantasy (B) federal(C)funeral(D)fictional

4. The ____ of the Internet somehow empowers users to make harsh comments they would likely never say to a person's face.(A) anonymity (B) antonym(C)autopsy(D)automobile

5. Up to 50 students at Stingy Elementary School had their school lunches thrown out because of outstanding ____ on their account.(A) bankruptcy (B) balances(C)benefits(D)benevolence

6. None of its coral islands is more than 1.8 meters above sea level, making Maldives ____ to a rise in sea level associated with climate change.(A) vindictive (B) vagrant(C)vulnerable(D)veracious

7. The singing competition, a hit in the US, never achieved the same popularity in Taiwan and ____ a ratings decline in its most recent season.(A) suffered (B) suffocated(C)experimented(D)extrapolated

8. A man who often told neighborhood children he was Santa Claus has been sentenced to 25 years in prison for having child ____ on his computer.(A) propaganda (B) proportion(C)portfolio(D)pornography

9. As reported by the ____ news agency, hackers have ____ the computer networks of the country's top medical device makers and stolen their financial information.(A) perpetrated (B) perverted(C)pensioned(D)penetrated