The fact that so many people still smoke
题型：选择题
问题：
The fact that so many people still smoke in public place ___that we may need nationwide campaign to raise awareness of the risks of smoking.
A．suggest
B．suggests
C．suggested
D．suggesting
题型：选择题
某同学在显微镜下观察到如图所示图象，且模糊暗淡．如何操作，才能使图象位于视野中央，且明亮、清晰（ ）
A．装片向下移动，调大光圈，调节细准焦螺旋
B．装片向上移动，调小光圈，调节细准焦螺旋
C．装片向上移动，调小光圈，调节粗准焦螺旋
D．装片向上移动，调大光圈，调节细准焦螺旋
