题目内容

The application of Al in healthcare is expected to cut ______ the cost of treatments and care.

A. out
B. into
C. down
D. through

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______ the Internet of Things is to become a reality, its developers should pay more attention to its security.

A. If
B. Although
C. Until
D. Unless

Unlike many companies______ service stops once the sale is made, our service begins once you buy our product.

A. what
B. whose
C. that
D. which

While______ the article, I was wondering whether e-books would replace print books soon.

A. reading
B. read
C. was reading
D. to read

It was not until the 1990s______ industrial robots became really cheap.

A. which
B. who
C. whom
D. that

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