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【单选题】
Virtually all consumers will have a credit card in their lives. Selecting a credit card should not be something taken lightly, card companies are constantly looking for new consumers, hat only after wisely comparing offers should you select a provider. Pick a company that will give you a reasonable rate and one that incentivizes their program with some type of reward for using their card. Almost without fail, rewards cards typically give consumers money back on their purchases or allow you to accumulate points toward prizes on future purchases. If you charge $10,000 per year and your rewards card pays you a 2% reward on purchases, you will receive $200 from the company. Usually you will gain the funds in the form. of several credits to your account spread out over the course era year, but in some cases you will receive the rewards in the form. era cheek. Rewards cards are free money? Only if you do not have to pay an annual fee and you pay your credit card off every month. If you do not pay your card off every month, your reward could easily be overshadowed by monthly interest payments, especially if your interest rate is high. Not too many companies pay rewards and give you a low rate at the same time. in theory, even if you carry balances for as little as 2-3 months before paying your card off you could find your rewards for the entire year outweighed by finance charges. So you need to consider the following when selecting your card: First, is there an annual cap on purchases? Many rewards cards will limit to you the amount of cash back funds or rewards points you can ac, emulate in one year. Most people never come close to the figure, but if you are a business traveler you can quickly approach and pass these limitations within the year. Second, do points eventually drop off? The majority of rewards cards only allow you to accumulate points for three years before they begin to drop off. If your next car purchase is five years away and you have a program that drops off points, you could find the first two years of card usage to be a waste as those points would vanish. If you still want that particular rewards card, only use it in years 3, 4, and 5 so that when it comes time to purchase your new car you will not have lost any points. You could consider getting and using another rewards card for a different rewards system to cover years 1 and 2. All in all, rewards car& can be a useful option for the savvy consumer. Remember, points do fall off and carrying balances from month to month will wipe out the value of the card in short order. By showing plenty of discipline you can make rewards cards work well for you. Consumers had better choose a provider of a credit card with ______.
A.
the promise of giving their money back on their purchases
B.
the rewards in the form. of a check
C.
a reasonable rate and reward for using their card
D.
the chance of giving their money back in a short time
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【多选题】肉毒梭菌食物中毒的临床特征有
A.
咀嚼吞咽困难
B.
大多出现意识障碍
C.
出现对称性脑神经损害症状
D.
患者体温升高
E.
特效治疗为抗毒血清
【单选题】旋光物质的结构中含有( )
A.
吸光基团
B.
手性碳原子
C.
共轭结构
D.
卤素原子
E.
金属原子
【多选题】肉毒梭菌食物中毒的临床特征有
A.
咀嚼吞咽困难
B.
大多出现意识障碍
C.
出现对称性颅神经损害症状
D.
患者体温升高
E.
特效治疗为抗毒血清
【单选题】旋光物质的结构中含有( )
A.
吸光基团
B.
共轭结构
C.
手性碳原子
D.
金属原子
【单选题】肉毒梭菌食物中毒特征性的临床表现为( )
A.
腹痛、腹泻
B.
剧烈呕吐
C.
发绀
D.
黄疸
E.
神经系统损伤症状
【多选题】肉毒梭菌食物中毒的临床特征有
A.
咀嚼吞咽困难
B.
大多出现意识障碍
C.
出现对称性颅神经损害症状
D.
病人体温升高
E.
特效治疗为抗毒血清
【单选题】下列关于肉毒梭菌食物中毒的叙述不正确的是:
A.
病原是由肉毒梭菌产生的毒素,是一种强烈的肠毒素
B.
家庭自制的并经厌氧条件的发酵食品为中毒好发食品
C.
以运动神经麻痹(对称性颅神经受损)的症状为其临床特征
D.
好发于冬春季
E.
应及时使用抗毒素血清治疗
【单选题】旋光物质的结构中含有( )
A.
手性碳原子
B.
吸光基团
C.
共轭结构
D.
卤素原子
E.
金属原子
【简答题】预混合型燃烧器的层流火焰通常可大致分为()个区域,其中()区是原子吸收的主要观测区。
【单选题】旋光物质的结构中含有( )
A.
吸光基团
B.
手性碳原子
C.
共轭结构
D.
金属原子
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