2. The improvement to the present system is in the charge of .
A. CTIA
B. the Warning Alert and Response Network Act
C. FCC
D. federal regulators
3. The carriers’ participation in the system is determined by .
A. the US federal government
B. mobile phone users
C. the carriers themselves
D. the law of the United States
4. Which of the following is true of cell phone users?
A. They must accept the alert service.
B. They may enjoy the alert service for free.
C. They must send the alerts to others.
D. They may choose the types of messages.
5. An alert message will NOT be sent if .
A. a child loses his way
B. a university shooting happens
C. a natural disaster happens
D. a terrorist attack occurs
6. Which of the following would be the best title for the text?
A. Cell Phone Alerts Protecting Students
B. Cell Phone Alerts by Wireless Industry
C. Cell Phone Alerts of Natural Disasters
D. Cell Phone Alerts Coming Soon
【参考答案】1—5、ACCBA
6、D
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