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【单选题】
xt0506718在气相色谱分析中,当用非极性固定液来分离非极性组分时,各组分的出峰顺序是()A.
按质量的大小，质量小的组分先出
B.
按沸点的大小，沸点小的组分先出
C.
按极性的大小，极性小的组分先出
D.
无法确定
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举一反三
【单选题】When you decide to buy a permanent life insurance, you had better ask a financial advisor for help.
A.
Understanding life insurance is one of the many challenges that young adults face these days. Between all of the confusing terms and the many options, it can become quite overwhelming. While you may be tempted to ignore this and see how long you can go without getting life insurance, it may be in your best interest to get life insurance now, while you are young.
B.
When permanent life insurance originated, companies only offered it in the form of whole life plans with fixed payments and non-flexible premiums (保险费). This guaranteed that consumers would have a pre-set cash value that would be guaranteed and a premium payment that would stay level over the years. It was inevitable that consumers would demand greater flexibility, and as a result, universal life insurance was created.
C.
Other varieties of permanent life insurance later came on the scene. For example, variable life insurance emerged as a solution for consumers who wanted to take a greater risk with their investment but also gain the potential for much higher returns. Variable permanent life insurance is the best of both worlds because it combines the perks of whole life with the flexibility of universal. You can have greater control over the money you invest in your plan when you choose this option. Additionally, permanent health insurance plans all have great tax breaks, so when you combine the tax incentives of permanent life with the possible returns of investing in a variable plan, you may see your money explode in growth over time. No matter which permanent life option you choose, if you think you are a candidate for coverage, you should seek out an independent financial advisor that can assist you with choosing from these options.
D.
Permanent life insurance is better than term life because term insurance only covers you for a predetermined number of years. Although term life plans carry much lower premium payments, the policies build up no cash value over time. Permanent life plans are also great because the cash value that you accumulate over time is not taxed until you decide to withdraw it. You can even sidestep those taxes by taking out a loan against your policy. This is great for people who make a lot of money because they can shelter their earnings in a permanent life plan when they have maxed out all of their other investment options.
E.
One of the primary disadvantages of permanent life insurance is that it provides more coverage than most people may need. In addition, if you have not maxed out your other investment options, then a permanent life plan might not be your best investment. The goal of permanent life insurance is to provide growth and protection for investors, but most should really seek out those characteristics in separate plans.
F.
Finally, permanent health insurance plans may not be very transparent, so it may be difficult to figure out how much the policy is actually worth as an investment. Some financial experts point out that a good solution to this problem may be to buy a term policy and invest the rest of your money through other avenues. The first place to start is to ask for life insurance quotes and evaluate which option is right for you.
G.
Additionally, because premiums for permanent life plans tend to be very high, you may be tempted to buy less of a death benefit than you really need. For example, a permanent life insurance policy for $1 million for a 40-year-old woman in great health may cost her as much as $13,900 a year. On the other hand, that same woman could land a $1 million term policy for 20 years for about $750. That's a massive price difference, so cost may essentially be the biggest disadvantage of permanent life insurance.
【多选题】调制在通信系统中很重要,它的主要作用和目的包括( )。
A.
将基带信号变换成适合在信道中传输的已调信号
B.
实现信道的多路复用
C.
减小信号的占用带宽
D.
改善系统的抗噪声性能
【单选题】根据以下内容，回答下列各题。 Whole life is permanent insurance protection that protects you for your whole life, from the day you purchase the policy until you die. as long as you pay the premiums(保险费）. Whole life ...
A.
Its permanent insurance protection from the day you were born until you die.
B.
Its permanent insurance protection that protects you for your whole life, from the day you buy it until you die.
C.
its insurance protection for your whole family members.
D.
Its income protection insurance.
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