正确答案: D

often

题目：_________

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]________ the difficulties of exercising, many people prefer to be on a diet to lose weight．

Aware of

解析：Aware of是固定词组，意为：意识到、知道。选项A是正确的。【句子大意】很多人意识到锻炼很难，便改为食物减肥了。

[单选题]_________

根据以下内容，回答下面的题目。Insure means to protect _51_ a loss of money．Most people can budget their money so that their income will cover expected expenses _52_ food, clothing, housing, and public services．But, there is no way to know _53_ who will suffer a crisis (危机) such as a serious illness, fire, flood, or a car accident．Such crises usually _54_ great expense．Even if people could predict crises, it would be hard to save enough money to _55_ the expenses．Insurance is a system _56_ a company collects money from many individuals and then pays certain expenses whenever one of those insured individuals is faced with a certain crisis．An insurance policy _57_ how much the insurance costs and how much the company will pay when a policy holder is faced with a certain crisis．There are many different kinds of insurance, _58_ hospital, motor-car and fire．Insurance can be rather expensive but most people buy insurance of some kinD．Insurance is something _59_ people buy and hope they will _60_ need．_________

earlier

[单选题]__________

根据以下内容，回答下面的题目。Investors can _51_ money simply by loaning it．The money they loan is called capital．Security (担保) is an expensive item which the borrower mortgages (抵押) to the investor to show that he intends to _52_ the debt．The way investors make money on loans is to charge interest．Interest is money that _53_ pay to investors for the use of their money．Interest is usually a certain percentage of the capital．Investors sometimes _54 ten percent or more interest per year．The interest may be calculated daily, monthly, or yearly．The interest must be _55_ before the capital can be repaid．If the interest is not _56_ the agreed rate, the interest is added _57_ the capital．Then the borrower has _58_ pay interest on the unpaid interest _59_ on the capital．A debt can grow quickly this way．If the total of the capital and accumulated interest gets too high, the investor will take _60_ of the item used as security and sell it to get his money back．__________

daily

[单选题]淀粉水解生成葡萄糖，能用来检验淀粉已水解完全的试剂是 （　　）

碘溶液

[多选题]甲状旁腺激素的作用有 （　　）

动员骨钙入血

促进维生素D3的活化

加强破骨细胞的溶骨作用

[多选题]颈动脉窦压力感受器敏感的人，适当压迫后可以出现（　　）

心交感神经传出冲动减少

血压下降

心率减慢

心迷走中枢紧张性增加

窦神经的传入冲动增加

[多选题]三叉神经 （　　）

为混合性神经

眼神经为感觉神经

下颌神经为混合神经

连于脑桥