单选题The best title of the text might be ______.A The Laser: A Scientific & Technological WonderB The Laser: A Powerful Tool for CommunicationsC The Laser: A Solution to Life-Saving ProblemsD The Laser: A Multimillion Dollar Invention
题目
单选题
The best title of the text might be ______.
A
The Laser: A Scientific & Technological Wonder
B
The Laser: A Powerful Tool for Communications
C
The Laser: A Solution to Life-Saving Problems
D
The Laser: A Multimillion Dollar Invention