[填空题]Intelligence tests have now been proved to be unreliable.

[填空题]Intelligence tests have now been proved to be unreliable.

[填空题]Quite a few (experiment)（）tests have been done, but none of them could help to cure the patient.

[填空题]Quite a few (experiment) ______ tests have been done, but none of them could help to cure the patient.

[单项选择]Calories
For years now, calories have been all the rage—people are counting them and cutting them, and you’d be hard-pressed to find something at the supermarket that does not list its calories per serving somewhere on the package. But have you ever wondered what exactly a calorie is
What Is a Calorie
A calorie is a unit of energy. We tend to associate calories with food, but they apply to anything containing energy. For example, a gallon (about 4 liters) of gasoline contains about 31,000,000 calories.
Specifically, a calorie is the amount of energy, or heat, it takes to raise the temperature of 1 gram of water 1 degree Celsius (1.8 degrees Fahrenheit). One calorie is equal to 4.184 joules (焦耳), a common unit of energy used in the physical sciences. Most of us think of calories in relation to food, as in "This can of soda has 200 calories." It turns out that the calories on a food package are actually kilocalories (1,000 calories=1 kilocalori
A. how much energy that food contains
B. the compilation of these three building blocks
C. how the energy is acquired
D. where does the food come from

[单项选择] Many now have been breathing hot flames at our industry and so I thought it would be time to say my piece this week, after all, we in the business cannot deny that it has been a rough spring for news paper editors and reporters.’’ Ethical scandals great and small have soiled newsrooms from coast to coast. Everyone knows about the profound deceits of Jayson Blair at The New York Times, and the "Writergate" controversy involving Rick Bragg, which led to the departure of the two top editors at the paper. Other misdeeds have ranged from two reporters at The Salt Lake Tribune selling information to The National Enquirer, to a food writer for The Hartford Courant fired for plagiarizing recipes. Are newspaper standards going to pot Some say ethics are worse than ever or are they The past is filled with people running photos of wrestlers in the sports section in exchange for money. In fact, ethical breaches may be less of a problem than 20 years ago. A 1,t of newspapers are cutting co
A. although competition among them has increased
B. so the quality standards from them have declined
C. and this means that the qualifications of reporters is declining
D. but the standards among newsrooms has improved over the years